This era in history may be remembered as the "Peak Age", a brief time when nearly all materials used to power and create our society reach the maximum extraction and production potential. Past this point, all of these resources become increasingly difficult to extract until they are no longer economically viable resources to be using. There are hundreds of examples of resources, currently embedded in our industrial society, which have reached their peak in the 50 years surrounding 2010, but the one which will most impact our society is petroleum.
The goal of living for 100 days without oil is to understand the extent of our dependance on oil in American society today. Specifically, how it will affect my life, as a 25 year-oil living in Minneapolis, MN. By using myself as a metric I can take a close and conscious look at where oil dependance occurs in all aspects of our daily lives : How we transport ourselves from one place to another, what we eat, how much waste we create, how water is cleaned and transported, where oil is used as; an energy resource, in conventional medicine and for hygiene and how oil affects how we entertain ourselves and communicate with others. By demonstrating how someone would be forced to live without using any oil resources, outlining both what the sacrifices will be as well as the benefits, we can can identify the many systems which will have to be re-designed in a world without cheap oil, and explore a new way of living in which we live in an energy balance.
(At the bottom of this page is a link to my version of a flow diagram of 'Where Petroleum Exists in Our Daily Lives' (using information from the Energy Information Administration-Annual Energy Review 2008 fig 5.0 Petroleum flow) click and zoom to enlarge)
Wednesday, December 1, 2010
In a post cheap oil world we will be at a loss for many forms of energy we currently depend on, primarily transportation fuels. However, electricity in the form of renewable energy will still be plentiful, it is just a matter of capturing it. Being in a city, wind energy isn't a first choice option In one of my first posts I calculated how much solar energy could be captured utilizing my entire roof. I disregarded cost of the panels in this scenario assuming that without oil or coal electricity, people would be more willing to maximize their systems regardless of cost. However, I choose a middle-of-the-road panel efficiency of 8 watts/sq ft (I've seen up to 16w/sq ft). Dividing the total solar roof array by 6 people I came up with a personal electricity budget of 6.82 kWh per person per day. This number seemed pretty high, however, and would actually cover our current electricity use according to our bills. Because of this and to take into account less efficient panels which are more reasonably priced currently I cut this number in half to come up with an electric budget of 3.4 kWh per day.
Similarly to my water calculations, I then measured all of my daily electricity use with a Kill-A-Watt Meter to come up with metrics.
I found that I use about 6.7 kWh per day. Unlike water use, however, the small-wattage devices such as light bulbs really add up because they tend to be the ones which are on for the most hours of the day. Regardless, it is still interesting to experiment with alternative ways of accomplishing tasks without electricity. Before the project I calculated that I typically have about 6-7 light bulbs on at any given time the hours that it is dark outside. I reduced this use to making sure I only had two light bulbs on at a time. One of the things I tried to supplement this light was making my own candles-out of soy wax because regular wax is a petroleum product. I used only candles for light for a few weeks but found that I needed at least one light bulb on for reading.
I eliminated some uses of electricity entirely including; hair dryers, use of the oven, cut light bulb use 75%. I began using a mini fridge instead of the large one and saved 2/3rds of the energy for refrigeration. There were added uses of electricity during the project as well. I started using a high-intensity fluorescent grow light to grow food indoors and had to make up for this use with my other electricity savings.
Lastly, I explored the use of solar power by visiting the PassiveHaus in the Woods as well as volunteering with the Minnesota Renewable Energy Society at their state fair exhibits. I tried out my own application of solar power on a small scale by building a solar-powered stereo which mounts on my bike. These experiences gave me an understanding of the potential of solar power, but also how far we have to go to meet our current energy needs.
Tuesday, November 30, 2010
Monday, November 29, 2010
While I biked quite a bit before this project started, it makes a big difference to be riding every time you want to get around. Without using cars and buses as back up transportation for cold or wet days, bicycle commuting takes on an entirely different face. I think a lot harder about whether I really NEED to go somewhere, ended up staying home many days that I didn't have classes instead of going somewhere to work. I started to modify my schedule so that I could ride around with other bikers and didn't have to bike alone (especially at night). Unlike driving, the routes taken depend on the weather and the time of day. While bike paths in Minneapolis are best during the day and during rush hours, well-lit main streets were a better option for late night rides home (even with traffic). As soon as it gets snowy and icy, I had to factor in another 10 minutes of riding time. Bicycle commuting changed the way I dressed. While it is easy to bring a change of clothes, I was often only going somewhere for a few hours and it didn't seem worth it to carry. Consequently, I pretty much wore the same few things for at least 2 months once the temperature started cooling off.
Workout? Kind of. There is so much starting and stopping that it isn't really much of a workout compared to the 30 minutes I would have spent on a treadmill. Yes, obviously its better than sitting in a car and still is nice to get out and be outside for an hour or two a day. I felt much more connected to the changing of seasons and it was really nice to watch the sun rise every morning while biking down the greenway.
My conclusion: Biking is absolutely the best way to get around while the weather is good (or even decent). For those brave and bad ass enough to keep going as the temp drops under 20 and the ground is covered in ice (as 1/3 of Minneapolis bikers do), I admire you, but would rather get on a bus December through mid March.
Below is a graphic of the miles I biked each day for 100 days: There starts to become a pretty clear pattern at the end of project when it starts getting colder I only bike to campus and back on days that I need to, whereas in the beginning of the project I was much more willing to run errands and take longer trips around the city.
I biked a total of 1,150 miles in 100 days. An average of 82 miles per week and 11.7 miles per day.
to estimate what I may have used. I used to fill up my tank about every 3 weeks, so 4.6 fill ups of 12 gallons of gas would have been 56 gallons of gasoline.
Sunday, November 28, 2010
For the last few posts I would like to think back and summarize how my life has changed during this project and what I have learned...
I'll begin with what was both the most difficult part of this project, and the most enjoyable- food.
Looking back, having started the project in the middle of August it should have been REALLY easy to find local foods. The middle of August in Minnesota is just about the peak of local food production, almost all vegetables can be found locally grown. However, despite this plentiful bounty of local produce it was really difficult to get a handle on what things I could prepare with it using other ingredients (cheese, flour, oils, dairy....). It took a while to seek out and find local milk, local flours in bulk, local butter in a compostable wrapping. I compromised on the cheese, because although there are many local cheeses available they are all wrapped in plastic. This became the only item I bought in packaging.
After the first few weeks of the project I had figured out where to get most of the ingredients I needed for cooking locally and without packaging. Many of the things I had a habit of cooking with however; olive oil, rice, avocados, soy sauce and many spices were no longer available. I had to learn to cook many dishes that normally I wouldn't have prepared for myself. Potatoes with mixed vegetables became a staple. I learned to cook all bread products from scratch- loaves of bread each week, muffins, tortillas, crackers. Made a lot of homemade pasta sauces and tried pizzas of all different kinds. Below is a summary of many of the foods I made out of local ingredients during 100 days:
I had the idea to begin growing my own food indoors to have a food source after the growing season started to die down. On day 1 of the project I planted a variety of of vegetables: tomatoes, bell peppers, cucumber, beans, onions, greens, and herbs to see what would grow with the available artificial light I had. Having never grown a vegetable in my life I learned about gardening by watching my little sprouts slowly start to become recognizable vegetables. I made plenty of mistakes growing the first few batches of seedlings and the grow table has gone through a few evolutions of goals. My first idea was to have a variety of vegetables and keep whatever grew the best (not knowing if anything would have enough light to fruit). After accidentally scalding the majority of my first seedlings (I left the plastic seed flat cover on too long), I began to reevaluated what kinds of plants would be most practical to my situation. Because most vegetables are able to be stored (whether dried, frozen or canned), I decided to focus on growing what couldn't be stored very well-greens. I started to grow a lot of microgreens which grow quickly and can be harvested after only about a month. This was going fairly well until I was infested with aphids. My continuing battle with aphids was one I didn't know I was going to have to have with indoor plants. While it was easy to pick the aphids off of most of the single plants, they were almost impossible to get rid of on the densely planted microgreens. I ended up having to get rid of a lot of the greens and went back to focusing on growing some vegetables.
Around day 85 I got my first flowers on vegetables and realized that without insects and wind to pollinate plants I would have to play the role that nature usually does. After 90 days I finally have my first fruiting plants with a little bell pepper growing! This is really exciting because I was starting to doubt that any vegetables would have enough light to produce fruit.
My new plan for the grow table is to make a habit of planting a few new vegetables every month, so I can have a continuous supply of at least some fresh produce. Below is a timeline of the grow table over 100 days:
|click to enlarge|
Lastly, it was interesting to explore restaurants that advertised themselves as local food focused. I found that there were many exceptions to their 'localness'. While 'local' dishes are offered year-round, they are only truly local when the food is in season. Many restaurants I ate at didn't offer many ( or any) local wine/beer, and all used olive oil instead of sunflower oil.
I learned to can, dehydrate and blanch vegetables for preservation, and tested how long I could store potatoes, onions and garlic. I ate only preserved foods for the last month and found that it would be really difficult to eat nothing 'fresh' for the 8 months of the year that fresh local produce is not available.
Tuesday, November 23, 2010
One of the interesting realizations I've had during this project is that we need to have different our attitudes about the various resources we use depending on our habits of use.
I blogged earlier about identifying the big water users in your lifestyle and working to reduce them as the most effective way to reduce water use (and live within our water budgets "Don't sweat the small stuff-Water use" (http://100dayswithoutoil.blogspot.com/2010/10/day-60dont-sweat-small-stuff-water-use.html). Electricity, however, seems to have the opposite story to tell. While there are some very high-wattage appliances I use regularly, they are often the ones that only get used for a brief amount of time, so they don't end up being the main energy users. On the other side, many of the seemingly small energy users (a single light bulb of only 60 watts, or even the fridge at 68 watts /hour) end up being big energy users because they are used almost all day. The small stuff adds up, wattages need to be taken into account but the time-of-use is critical in electricity counts.
The following pie charts show a comparison of watts per hour of energy users vs watts per day:
This chart shows the two values next to each other- Watts per hour vs Watts per day. The three biggest energy users are in the dashed boxes, notice how small the wattages/hr are compared to some other appliances that don't end up adding up to much!
Monday, November 22, 2010
I'm finally getting flowers on my bell peppers and jalapeno plants! Being that my plants are growing inside, however, means that there are no insects to pollinate the flowers into fruit-bearing plants. This is a problem that greenhouses run into because of the lack of insects, as well as some small city gardens where the insect population isn't in full swing.
There are two kinds of pollinating plants; " those that produce male and female blossoms, and those that only produce one type of flower. The former include plants such as zucchini and squash, cucumber, and watermelon. In the latter category are eggplant and bean. These are called "perfect", "bisexual" or "complete" flowers because everything is contained within each bloom. Hand-pollinating is not difficult for either type of plant, but the approach is different" http://vegetablematter.blogspot.com/2009/08/how-to-hand-pollinate-your-vegetables.html
The good news is pollination is fairly simple to simulate. One of the easiest ways is to introduce ventilation fans which allow the pollen to circulate from flower to flower. In the same way, shaking the plants which flower buds gently will allow pollen to fall. If this doesn't work, however, you can pollinate by hand using a small paintbrush or q-tip.
With plants that produce male and female blossoms, the females can be identified by a tiny vegetable bud growing at the base of the flower. To pollinate this type of plant, snip a few of the male blossoms off of the stem, remove the petals, and shake pollen into the female flowers. For plants whose buds have both male and female parts, I used a Q tip to transfer pollen from the male 'stigmas' onto the single female 'anther' in the center.
My understanding is that the blossoms will close up when pollinated and begin to grow the fruit. If the flowers are not closed up after a day or so, try pollinating them again.
Good luck little peppers!
|bell pepper flower|
|green bean flower|
life without work,
life for free.
The concept of oil expresses perfectly the eternal human dream of wealth achieved through lucky accident.
In this sense, oil is a fairy tale and like every fairy tale,
a bit of a lie.
Ryszard Kapuscinski (quoted in Crude by Sonia Shah)
|deepwater horizon 4.20.2010|
One of the people to blame for me doing this project is Colin Beavan, writer of the book No Impact Man, and movie of the same name http://noimpactproject.org/movie/. A writer in New York City, Colin drags his wife Michelle and baby girl along as he attempts to change their lifestyles to be as 'no impact' as possible for one year.
For one year, they don't buy anything new except food, eliminate trash as much as possible by composting and shopping at farmer's markets, get around only by bicycle and scooter, eat locally, turn off their electricity (including heat and refrigeration) and try to find ways to improve their environment both environmentally and socially.
Sound familiar? Yeah, I saw the movie last summer when brainstorming ideas for my thesis project and was immediately brainwashed. There are some really beautiful moments of their family becoming closer and learning about what they really need while doing the experiment that are captured in the movie. What could be looked at as drudgery and sacrifice they find ways to use their situation to their advantage, kicking a TV habit, losing weight, spending more time together, and reducing their desire for material things.
Although I got a lot of my ideas of how to frame my project from watching the Beavan's experience, I thought it would be more relevant to give the project a scenario that would give me clear 'criteria' or 'rules'. Although I focused initially on '100 days without oil', it has morphed into more of '100 days living within an energy, food and water balance'.
YES! Magazine has asked me to participate in (and blog about) doing Colin's one-week No Impact Man Experiment http://noimpactproject.org/experiment/. This is basically a one-week trial of what his family did for a year. Each day is a focus on a new aspect of the project. Hundreds of people across the country and world sign up to try the experiment which is held a couple times a year, and write about their experiences.
While I have some criticisms No Impact Man after doing my own version, it will be interesting to compare our methods. No Impact Man is an expereiment admittedly driven by guilt. The subtitle of his book is: Adventures of a Guilty Liberal who attempts to Save the Plant and the Discoveries he makes about our Way of Life in the process. While guilt is certainly a motivator for people, it isn't really a sustainable motivator. I outlined the motivation for my experiment to be one of understanding how to survive in a post-cheap oil world. By eliminating the 'guilt' or 'choice' factor, I am allowed to focus more on how we will make these changes, but have realized at the end of this project that it does all come down to our choices, and addressing that is extermely important.
Colin's experiment seems to more vaguely define what 'no impact' is, allowing himself to pick and choose what aspects of his life me would like to change. At the same time, they radically change some aspects of their life by not using any electricity. Because we will never have NO energy, I feel that it is more relevant to play out a scenario of what may be happening in our futures. Our projects are similar in that, neither one of us is trying to say that we WILL live this way at some point or even SHOULD live this way. It is more of a test of our dependencies on systems that we were born into and didn't necessarily choose. By taking many of the luxuries we have (because of energy resources of oil and coal) away for a while, we are allowed to see our attachment to them.
While his family goes back to their 'old' habits of living in some ways at the end of the project, they keep many of the changes and promote their experiment through their testimonials that their experience made them happier and healthier, gave them more time and saved them money.
Needless to say, I haven't necessarily come to all the same conclusions.
Starting Jan 3rd, however, I'll give No Impact Man a chance, for anyone who wants to join along, here is a link to the experiment: http://noimpactproject.org/experiment/
Wednesday, November 17, 2010
The graphic below is part 1 of a comparison of where the food I have been eating before and during this project is coming from. While all the food I am eating is labeled as 'local' below shows the locations of creameries, flour mills, farms, and orchards which have provided me with 'local' food throughout the 100 days. (click to enlarge)
The co-op defines 'local' as any product which
- can be delivered to the store within a day of travel or
- is produced in Minnesota or the bordering states.
Here is a brief breakdown of where each 'staple' food I have been eating is coming from:
Whole Grain Milling
Located in Welcome, MN
120 miles away
Located in New Hope, MN and Carrington, ND
10 miles away
MILK + HEAVY CREAM:
Cedar Summit Farm
Located in New Prague, MN
30 miles away
GREENS, TOMATOES, PEPPERS, ZUCCHINI, ONIONS
Garden's of Eagan (Our co-op owns this organic farm)
Located in Farmington, MN
30 miles away
Located in Morristown, MN
50 miles away
70 miles away
125 miles away
SUNFLOWER OIL, POTATOES:
Soldier's Grove, WI
150 miles away
Hard cheese from Sartori Cheese
Located in Plymouth, WI
275 miles away
Slicing and Cheddar cheese from Widmer Cheese
Located in Theresa, WI
250 miles away
All of my food is coming from within a 300 miles radius. While it's still better than the 1,500 mile radius that defines the average American dinner, it still isn't anything to be yelling about. While my cheese and veggies aren't coming from California or Florida, they are still a stretch of the term 'local'. However, any of these farms and businesses COULD be located around Minneapolis. They aren't, simply because there still is not enough of a demand for it. For most people, the motivation for buying local is to support local economies and eat fresher food. The scale of local foods operations cannot possibly compete with large-scale food production companies which distribute their products to stores all across the nation. As out transportation fuel sources become increasingly expensive, however, the motivation could become more economically based.
On the upside, I get to eat a buch of super-tasty, local foods. These businesses are often very small-scale, family run operations. They take pride in the foods they are growing and making and you can tell by the taste. It is interesting to go on the websites and read the stories of these businesses, they are often very transparent about their processes and growing methods.
Some great websites on local foods in MN are here:
Tuesday, November 16, 2010
6 reasons camping is like living no oil (and the lessons I learned from sleeping in the dirt)
1_You shower less
Camping may be many people's only experience going a week or more without showering-it was mine before this project. With no easy access to water/showers and the fact that you are going to get all sweaty and grimy every day just after you get up, whats the point? I haven't necessarily felt smelly or dirty taking quick showers twice a week during this project. The harder part was just ditching the habit. I had a firmly established morning ritual and routine which was ingrained into my head since sometime around 7th grade probably which included getting all wet every morning and then drying off again. Don't get me wrong, when it's shower day I'm ready and its time, but getting another 20 min of sleep every morning and saving energy not having to dry my hair has been a change that I could get used to.
2_Cooking dinner is an event
Camp dinners are a big deal. Everyone is hungry, there is only one stove and usually only one person has the food. This means everyone has to work together, spend some time making a good meal. The way food brings people together camping is a lot like how it has during this project. I've adopted the habit of cooking for at least a couple people probably 50% of the nights of a typical week. After all, if you're going to go to all that work, might as well be worth it to more people than yourself.
3_When the sun goes down, it gets dark
I mean, there aren't any other options. Headlamps are the original task lighting. The fire or lamp on a picnic table becomes the gathering place because it is the only place people can see (and its warm). Its harder to move around when the whole area (or house) isn't lit up. You walk to the bathroom, you gotta take a candle (or a flashlight). Areas with the most lighting (like our table with a bunch of candles on it) automatically become the places people go to.
4_Water is precious
Whether it is because you're waiting for it to rain or just haven't filtered enough water, water scarcity is a real issue in both camping and trying to live within your water 'budget'. Camping in the frozen meadows below Grand Teton where the water is either frozen or ICE cold is a real test of how badly you need/want it and an excellent exercise in conservation. Camping taught me how to do dishes in a no-oil world. Use leftover boiling water from cooking for hot wash water. Pour your rinse water and wash water into two basins (or use the biggest two pots that are dirty). Do cleanest dishes first. No running water needed. Why do we abandon these habits when we go back to our homes with running water?
5_Connection with the elements
You havn't truly expereinced snow until you have slept in it. And on it. And under it. I'm not trying to promote this in any way, it was actually kind of miserable, but gave me a totally different perspective of the kind of weather we have here. We've done a great job at protecting and isolating ourselves from the elements. After all, that's how we survived. However, the more isolated we become, the greater the sense of unfamiliarity and even fear comes from being out in the elements. Winter biking is a good example of this. There aren't many mornings that I look out the window and get excited to jump on my bike and avoid snow chunks. Once I am out there riding however, I realize how worked up I got about something that really isn't that bad.
7_You dress for the weather
Dressing comfortably and warmly for biking in freezing temperatures takes priority over looking nice. These are my sisters on a winter camping trip in northern MN, clearly, the same deal ;)
6_Cannot create any waste
When we go camping we make NO waste, we EAT our toilet paper. Well, maybe not. Regardless, it is easy to be aware of how much waste you are creating when you are on a backpacking trip and have to carry it with you the rest of the trip. Having to collect all the waste I create (even after eliminating as much waste as possible) has been a reality check for me (especially now that I have almost 90 days worth). We've gotten really good at packing food and avoiding packaging in these situation. There is also more motivation to avoid dumping stuff when in a pristine wilderness. However, it doesn't matter whether you throw that candy bar wrapper down a glacier or in an urban street, its eventually going to end up in the same place. Paying attention to some of the ways I found to reduce waste on backpacking trips was a good start for me when I started this project: Refill your water bottle, avoid individually wrapped items, and buy in bulk using reusable jars. Pack it in pack it out. Or in the no oil case-don't make it at all.
An interesting exercise would be to carry around all the waste you create in a day. At the end of the day, take an inventory of what was; organics, recyclables and trash. If you eliminate some of the waste you create, try to find an alternative. For example, ask if a restaurant can put your take-out in a container that you bring.
Monday, November 15, 2010
The time has come, snow is here. What was predicted to be a few inches that melts on the ground turned into about 3 of snow that definitely isn't going anywhere, complete with a Snow Emergency Day. While it is nice not to be driving around in the craziness of the first snow (there was something like 1000 accidents), I'm not sure biking is a whole lot safer (although definitely faster) in these conditions.
|more bikes in the snow|
The City of Minneapolis has a page on their website specifically dedicated to winter biking
http://www.ci.minneapolis.mn.us/bicycles/WinterBikingTips.asp What may surprise summer bikers is that 50 of the 60 miles of bike trails throughout the city get plowed just like city streets. According to some friends that are hardcore winter bikers, the bike trails are usually the first to get plowed. As it should be :)
The last two winter's I've lived in this ice-box of a city before this project I would bike until the end of October, and have never felt the need to tempt fate on a bicycle when it's icy and freezing outside. However, the more I meet people who bike almost all year round, the more it seems like a possibility even in Minnesota (if you have the right equipment and clothes). Census data shows 4,800 residents of Minneapolis regularly commute to work on a bicycle. The number for the entire metro is 9,700 bikers. A local group called Transit for Livable Communities estimates one-third of those biking enthusiasts continue commuting to work during the winter.
A couple of bullet points from Shaun Murphy of the Minneapolis Bicycle and Pedestrian Programs: -- Minneapolis has 4,800 residents (2.5% of all workers) who regularly commute to work by bicycle, while the entire metro has 9,700 bike commuters (0.8% of all workers). So 50% of the regular bike commuters live in Minneapolis. [Source: Census data] -- Don Pflaum (City Bicycle Coordinator) estimates that about 15,000 bicyclers are seen each day during the warmer months in Minneapolis. [Source: Minneapolis Public Works estimate]
Here is a funny video of winter bikers:
http://www.icebike.org/ represents bikers all over the country who bike through the winter. Who are these people? In their own words:
"Most of us are just ordinary folks, who get this addiction to bicycles that simply will not live within the bounds of a summer. Others just don't want to spend the cash for a car and all the costs that come with motor vehicles. Some of us have serious personal commitments to being car-free, others have temporary problems of liquidity, and others of us just like cycling way more than any rational person should."
Cheers winter bikers, I'll join you for at least the next week.
I"ll leave you with this warm SF critical mass vid: http://www.youtube.com/watch?v=NSmmz4vL7
I biked 10 miles to get more potting soil the other day (local potting soil mixes sold at Interior Gardens in NE), and it got me thinking about running errands by bicycle (and how strange it was to bike 10 miles to get dirt).
There are a lot of ways to carry stuff on a bike. I see many people using burley trailers (with or without children inside), but without forking out the couple hundred bucks for one of those here is a great list of DIY bike trailers from http://www.chiark.greenend.org.uk/~armb/cycling/trailer.html)
- Bike Trailer Blog DIY list (quite a lot of duplication with this list, wasn't around when I started)
- Community Bike Cart Design
- http://practicalaction.org/docs/technical_information_service/bicycle_trailers.pdf (linked page isn't a PDF, it's now a text page with PDF link on it).
- http://moz.geek.nz/mozbike/build/shoptrailer/index.html (now in a small production run)
- http://howtofixbikes.blogspot.com articles: one, two, three.
- Bikes At Work have trailers which can be customised with your own platform or support on their "spine".
Some load carrying alternatives to trailers:
- Xtracycle An extension that bolts on the back of a standard bike, allowing cargo bags much larger than typical panniers and a "deck" that doubles as a passenger seat. http://www.xtracycle.co.uk is no longer working (was UK distributer), but ISON stock the Surly Big Dummy. Xtracycle now publish the critical dimensions of their bikes as a standardfor anyone who wants to build something compatible.
- Loads Better have a variety of load carrying or heavy duty bikes, including the Xtracycle and (coming soon) the Yuba Mondo.
- The Kona Ute looks like a similar sort of thing to the Yuba.
- Surly Big Dummy, a frame dedicated to taking the Xtracycle accessories without needing the extension piece.
- Stokemonkey is an electric hub motor adapted as a bottom bracket drive for a Xtracycle or similar (it won't fit on a standard bike frame).
- Cargocycle, another extension, which takes a large box.
- 8-Freight, a purpose built bike with load area behind the cyclist.
- http://moz.geek.nz/mozbike/build/binbike/index.html a bike with large load platforms above 20" wheels (built after his long bike cracked).
- WorldBike aims at providing cheap xtrabike-like load carriers and other load-carrying bike technology to developing countries
- A Cargo Bike for Uganda at the Bicycle Design blog
- Project Rwanda and Kona Bike Town also have African bicycle related material (including wooden bikes taking huge loads in Rwanda).
- Practical Action (formerly ITDG) have a bicycles factsheet as well as the trailers one above, which also has designs for load carrying extensions.
- Xtracycle fitted to LWB recumbent, and a Greenspeed load carrying trike
- Homemade (I assume) longtail on Instructables, but no details
- BikeRescue prototype longtail on Velovision
Here are some examples of people carrying ridiculous amounts of stuff on bicycles:
|plumber with an xtracycle http://www.xtracycle.com/|
|people moving using bikes http://tricolour.net/photos/2003/05/10/hpv.html|
|this guy is carrying a washing machine|
Daylight Saving Time means a lot more to me this year than it has before. Before DST, the sun was barely up when I was hoping on my bike in the morning, and I would spend at least the first 15-20 min riding in the dark. Although the sun set 'later' before, I am usually coming home late at night anyway. Starting today, I get daylight in the morning and can ride at least half of my commute in the light!
The reason behind Daylight Saving Time is all about energy;
"In general, energy use and the demand for electricity for lighting our homes is directly connected to when we go to bed and when we get up. Bedtime for most of us is late evening through the year. In the average home, 25 percent of all electricity we use is for lighting and small appliances, such as TVs VCRs and stereos. A good percentage of energy consumed by lighting and appliances occurs in the evening when families are home. By moving the clock ahead one hour, we can cut the amount of electricity we consume each day.
Studies done in the 1970's by the U.S. Department of Transportation show that we trim the entire country's electricity usage by about one percent EACH DAY with Daylight Savings Time " (http://www.energy.ca.gov/daylightsaving.html)
The time for DST has gone through many changes over the years. When President Reagan changed DST from the last Sunday in April to the first Sunday in April in 1986 it is estimated to save nationwide about 300,000 barrels of oil each year.
The time was changed again to start on the second Sunday in March and was extended to end on the first Sunday in November starting in 2007, which it is still at today.
Although the days will continue to have less daylight until the darkest day (Dec 21), my mornings are a little easier, and I use less light in the am. Biking around in the daylight feels a lot safer, whether or not it actually is. In general, I feel much more connected to the seasonal changes and when it gets dark now. Although lights are a small part of my energy budget (especially now that the heat is on), it makes a big difference for biking around, and brings the morning temperature up above freezing :)
After eighty-four days, I have my first grow-table harvest! Yeah, its only cilantro, but you can't get that at any grocery store these days so it feels like a big deal :)
Some 'minnesota-in-the-winter-fajitas' were made with it:
_stock of frozen bell peppers
_stored onions (they are starting to rot)
_hot peppers (dried)
_tomatoes (found local ones again at the grocery)
By direct-sowing seed, the plants I have started over the last few weeks have been growing WAY faster than the ones I started as small transplants at the beginning of the project. After only 1 month I have an 6" high tomato:
|jalapeno (planted 8/15)|
The romaine I started on August 15th is probably ready to harvest as well:
Here is a shot of the whole garden as it is now. I especially like these shots because you can see the snow in the background. Having never grown a plant in my LIFE before this project, I'm feeling pretty good about being able to grow them in the snow :).
Friday, November 12, 2010
"The highway network is one of the most significant achievements in the history of the civil engineering field. Perceived as an imperative measure for the development of a robust economy, the highway network has become a primary mode of transportation and driver of the economy in the United States" (Energy Consumption of Asphalt and Reinforced Concrete pavement materials and Construction, Zapata and Gambatese, 2005). nearly 83% of all roads and streets in the United States are of flexible type (asphalt wearing surface), 7% are of rigid type (Portland cement concrete with or without a bituminous wearing surface) and approximately 10% are of composite type (bituminous surface on PCC base) (Zapata and Gambatese 1).
Humans have been using bitumen (the glue component of asphalt) since at least 3000 BC for small waterproofing tasks. It was harvested from places where petroleum had seeped to the surface. By 2500 BC it was being used to provide an impervious surface from which water could be collected. (Ways of the World: A History of the World's Roads and of the Vehicles That Used Them, M.G. Lay, pg 50). It is mentioned in the Bible as being used for waterproofing Noah's Ark, "Make yourself an ark...and cover it inside and out with pitch" and for building the Tower of Babylon. (Gen 6:14 as mentioned in Ways of the World pg 50). Asphalt has been around for a long time, but only since the early 1900's has the production of asphalt exploded to the level we use it today.
Asphalt is the 'bottom of the barrel' product from the distillation and fractioning of crude oil, and accounts for 0.95% of each barrel of oil (42 gallons in a barrel). 80% of this asphalt is being consumed in the United States for asphalt-concrete road pavings. Roofing Shingles account for most of the remaining 15% of asphalt, with a little being used for waterproofing of other objects. Asphalt used for roads is composed of 5 percent asphalt cement and 95 percent aggregates (stone, sand and gravel). The process of manufacturing this product requires a huge amount of heating energy in order to mix the aggregates and keep it in a liquefied state while storing, resulting in 4,000 mixing plants in the U.S.
While the Energy Information Administration reports that cement production ranks seventh among the most energy-intensive manufacturing industries (EIA 2002) in term of energy use per dollar of output, it is also the most widely recycled material. According to the Federal Highway Administration and the United States Environmental Protection Agency, 80% of asphalt removed each year is reused as part of new roads.
What will happen when oil is no longer cheap enough to use so extensively for road paving? It may be recycled for a while until it is unusable, but ultimately, we will have to find alternatives. Concrete roads are one that has also been in service for a long time, but today is not predominately used. The following graphic depicts an energy analysis of the asphalt throughout it's lifecycle and compares this with concrete roads. Information for graphic interpretation found in (Energy Consumption of Asphalt and Reinforced Concrete pavement materials and Construction, Zapata and Gambatese, 2005).
|click to enlarge|
There do exist some alternatives asphalt which can be made from non-petroleum based resources such as sugar, molasses and rice, corn and potato starches. It can also be made from distillation of waste motor oils which would otherwise be burned or dumped into land fills. These products are typically lighter colored, which result in roads with less heat from solar radiation reducing potential heat island effect.
Wednesday, November 10, 2010
One of the things I really love about having the grow table in my living room is watching the plants go to sleep when the grow light turns off for the night. The sun is going down here at 5:00 now and the grow light is on until 7, so it is the last light the plants see every night. Almost immediately after it turns off, the green bush been plant I started 2 weeks ago (which is HUGE by the way) starts going to sleep. No longer needing to hold its leaves up to capture light, it bends them down like it is folding its arms and curling up for sleep. When I get up in the morning it it has spread it's leaves up ready to catch the light of the next day :)
We all hear about how much fuel it takes to fly, but is it really that bad compared to driving a truck/SUV or a regular car? A Boeing 747 travels at 560 miles per hour and uses 3,200 US gallons of fuel per hour. This is 5.7 gallons per mile, or 0.18 miles per gallon.
(Tennekes, Henk. The Simple Science of Flight: From Insects to Jumbo Jets, MIT Press, 2009 http://mitpress.mit.edu/books/chapters/0262513137chap1.pdf)
Converting into gallons per mile allows us to then compare the 'passanger gallons per mile', which is a more fair comparison for transport modes that carry more than one person. A 747 can seat up to 400 people, I used 350 in my comparison.
A fully loaded subcompact car with 40 miles per gallon (good gas mileage) gets 0.025 gallons per mile (inverse of mpg). With four people in the car it gets 0.006 gallons per passenger mile, however, it is more rare that people are driving with 4 people, with only two the gallons per passenger mile comes in at 0.012. The plane with 350 people gets 0.016 gallons per passenger mile. Pretty close. So it depends on how many people your family is trucking out to Florida, but if you are comparing just driving vs flying, flying is actually a more efficient use of energy.
As for buses, according to this article http://www.coloradodot.info/programs/commuterchoices/documents/trandir_transit.pdf a typical Transit Bus is 40' and can hold 42 passengers. Miles per gallon for a conventional diesel bus is 5.1 mpg and 9.3 for a hybrid electric bus ("Performance and Fuel Economy Comparitive Analysis of Conventional, Hybrid, and Fuel Cell Heavy-Duty Transit Buses" By V. Dawood and A. Emadi, Grainger Power Electron. & Motor Drives Lab., Illinois Inst. of Technol., Chicago, IL, USA ). With around 40 passengers the conventional bus gets a gallons per passenger mile of 0.0049, and 0.0026 for a hybrid bus. So the conventional bus is
5.1 times more energy efficient than driving your car alone, and the hybrid bus is 9.6 times more efficient.
As for those people driving personal light pickup trucks and SUVs, these vehicles are over twice as inefficient than ANOTHER OTHER MODE OF TRANSPORTATION OUT THERE gallons/passenger mile count is 0.055, 2.2 times worse than a subcompact car and 11.2 times less energy efficient than riding on a conventional bus.
As for biking and walking, they have no competition. As mentioned in my previous post, biking (calculating human calorie energy expended) is equivalent to 759,493.7 miles per gallon and walking (burning 100 calories an hour) is equivalent to 314,782.17 miles per gallon. Biking is 19,230.8 times more efficient than driving your subcompact car and walking is 7,886.4 times more efficient. Walking burns about 60 more calories per hour than biking making it less 'energy efficinet', but as my roommate pointed out looking at these numbers, when it comes to your own energy, suddenly energy expenditure looks like a good thing. After all, its renewable :) Eat a sandwich.
The following graphs show the sequence of information translated from the 'Transportation Energy Data Book' put out by the US Department of Energy, Issue 29).