Showering With the Sun

Maggie using the solar showerWill and I spent a pleasant hour in the hammock a few weeks ago talking about project ideas for the house.  He’s been especially focused on energy savings and was very excited about the idea of building a solar shower.  I have many fond memories of outdoor solar showers but the ones I have used in the past involve solar water panels, plumbing, welding, privacy screens, and several other features that would challenge my handywoman skills.  Ever practical, Will suggested that rather than plunging into a new construction project, we should pick up a simple camp shower and try it out so we could go ahead and turn off our hot water heater.

We picked up a solar shower kit at a local box store for $25 that consists of a curtain with a zipper, a solar water bag with a shower nozzle, and a support structure to hang it all from.  We hung the support structure and curtain from one of the big sugar maples in our backyard, filled up the water bag, and I took the first shower.  It was not a great experience.  The shower bag came with a long tube leading to a shower nozzle, which in theory gives you the flexibility to spray in many different directions.  In actuality, you have to keep the tube stretched out and sloping down to get decent water flow, which means crouching down and risking mooning the neighbors.  We had also neglected to stake down the curtain, so it was blowing around a bit and decreasing my feeling of privacy even further.

Solar Shower BagAfter that first shower, I cut the tube into a short piece so now I can stand under it comfortably (Will has to duck a little).  We put a piece of indoor/outdoor carpet under the shower so it doesn’t get too muddy.  It’s still a bit of a pain to fill, heat, and hang the bag but it’s doable.  Actually, the biggest challenge is keeping the water comfortable instead of scalding hot.  The solar shower heats up too well some days and we have to add cold water.

We’re going to try it out a little longer but I think it’s been successful enough that we will try building Solar Shower 2.0, perhaps using the directions from the Carbon-Free Home book.  They suggest building a platform of some sort and putting a small (10-gallon) black barrel up on it with a shower spigot sticking out.  Ideally, it should be designed so you can fill it from the ground using a garden hose (or rain barrel) so you don’t have to haul it up and down.  Sounds good to me!  Maybe we can build some actual walls around it too….

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The 3 kWh Challenge

After a poor April (with no year-over-year change in our electrical consumption), we got a new refrigerator and reevaluated our strategy. Reducing our furnace use helped a lot in the winter, but we barely used the A/C last year, so that wasn’t going to improve this year.

Thanks to the refrigerator, May was a good month. We were able to reduce our consumption by 50%! That brought our total usage for May to 121 kWh, which is a little over 4 kWh a day. Given that, I talked Maggie into trying to reduce our usage to less than 3 kWh a day in June. For comparison, leaving two incandescent bulbs on would use up the allotment for that day.

So June is over; how did we do? From June 1st to July 3rd, we used 79.9 kWh or a little under 2.5 kWh a day! Here’s how we did it.

No A/C - A/C isn’t as energy intensive as heating, at least in part because the temperature difference isn’t as high, but it still uses a lot of power. Running a typical central air system for half an hour can use over 1 kWh. Instead, we used blinds to reduce solar gain, opened windows when it was cool and closed them when it was hot, used the ceiling fan and window fans, and, on one particularly hot afternoon, took refuge in an air-conditioned movie theater.

No hot water - the majority of residential energy use is cooling and heating, including water heating. My best estimate is that our 40-gallon water heater uses 300 Wh (0.3 kWh) a day. We got a solar camp shower and we’ve also taken some cold showers. As a bonus, we cut our water use significantly since you don’t dawdle in a cold shower!

No clothes dryer - Our clothes dryer runs about 2 kWh per load! Now that it’s summer, we’ve avoided using it entirely and line dry everything. It takes more planning, especially since we had so many thunderstorms in June, but that’s quite the energy savings!

Reduced computer use - I have a small netbook that uses less than half of the electricity of my normal laptop. I was able to get even better numbers by using Windows’ power settings to dim the screen and slow the processor. I also made sure to take my charger with me when I worked outside the house. That doesn’t decrease my overall electrical use, but partly offsets the fact that I work from home.

Sharing space - In the evening, Maggie and I make sure we spend most of our time in the same room. That means we’re only running one fan and one set of lights. It’s not a big savings, but it’s also pretty easy to do.

We won’t be able to sustain it into the winter, and some of it is extreme enough that we might not be able to sustain it for more than a month or two. I think we’ll be able to keep it under 3 kWh for July and maybe August, but when it gets cold again, we’ll have to turn on the furnace. We also won’t be able to stop using the dryer entirely at that point. Still, for now, we’re feeling pretty good!

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Energy Star Appliances Rock!

our refrigeratorThis whole SIREN Energy Challenge has made us even more conscious of how much electricity we use and Will has become obsessed with switching off lights, unplugging appliances, and spending his free time trying to uncover the source of unaccounted energy use every month.  We thought we had made some major progress with our new water heater and our conservation efforts and were initially proud of our first quarter results - 11% less electrical use than last year.  Then we found out that the winning household cut their energy use by 35% for the quarter!

How did they do it?  They made a lot of little changes that we’ve also done like adding attic insulation, installing a programmable thermostat to lower their heat at night, caulking windows, and replacing light bulbs with CFLs.  However, they also made two big appliance changes.  First of all, they unplugged an underutilized chest freezer, determining that they didn’t need the space.  Secondly, they replaced their 1986 refrigerator with a new Energy Star model.

We don’t have a chest freezer but we immediately became suspicious of our refrigerator and got out the Kill-a-watt meter, which confirmed our fears.  The old fridge was using 2.6 kWhr/day, which was a big chunk of our daily usage.

Our “Carbon Free Home” book suggested insulating the fridge to try and increase its efficiency so we got some foam insulating board from the home improvement store and stuck it on with double-sided carpet tape.  (For those aesthetic types, they suggest building a wooden insulated box around the sides of the fridge and adding shag carpeting on the front for a little extra oomph.)  It seemed to help at first but then the electrical usage went back up, possibly because our house suddenly warmed up with the weather.  (We survived with the thermostat at 62 all winter long but in May 62 degrees started feeling really cold!)

I suggested that we look into getting a new fridge so Will started doing research and we figured an Energy Star fridge would be at least 50% more efficient, which seemed significant.  We shopped around a bit and although theoretically there are SUPER efficient fridges out there, we bought one that is simply VERY efficient from our local box star.

The results so far?  The new fridge uses less than 0.7 kWh/day, which is about one quarter of what the old fridge used.  Did you catch that?  It uses SEVENTY-FIVE PERCENT LESS ELECTRICITY!  We’re thrilled and feel like it was totally a good purchase, even though a payback time of 8 years still seems like a lot.

Of course, replacing the refrigerator was relatively painless (at least in terms of our day-to-day lifestyle).  We decided to push on into the lifestyle change category in the quest of fame, fortune, and fabulous eco-prizes.  Tune in next week as Will regales the world with tales of turning off our air conditioning, our water heater, and our clothes dryer in the quest of using less than 3 kWh/day….

Energy Tracking Note:

kWh/day = kilowatt-hour per day which is calculated by multiplying the wattage that a device uses by the number of hours it runs in a day and dividing by a thousand.  Here’s a link to a nice post about estimating appliance energy use provided by our federal government.  For real world testing, you can use a Kill-A-Watt device on anything that plugs into a normal outlet (so it doesn’t work for most clothes dryers and water heaters).

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Now We’re Cooking With the Sun

solar_ovenA friend gave me her solar cooker last year because she lives in a shady neighborhood and it just wasn’t working for her.  I was very excited to receive it but had trouble getting motivated to use it until I picked up a book at the library this spring.   “Cooking with Sunshine” by Lorraine Anderson and Rick Palkovic has a great selection of recipes and tips but also talks about different options for when you have more or less time available.  They have some recipes that cook entirely in the cooker and others where you either do some cooking ahead of time (such as sauteing onions) or some cooking afterward (such as converting cooked rice into a rice salad).  They also talk about what foods you can leave in the solar cooker all day without worrying about burning or drying out.  I don’t want to admit how many times I have scorched rice or beans by leaving it on the stove for too long so I was very relieved to learn that wouldn’t be an issue with the solar cooker.

It also took awhile for me to grasp the idea that even if I only use the solar cooker for part of a meal (say cooking a pot of beans which I then incorporate into burritos or chili) I am still reducing my carbon footprint and taking advantage of free, clean energy.  Somehow I got caught up in the idea that if I were going to go solar I had to go all the way and the world would come crashing down if clouds rolled in and I had to put my beans in the oven to finish cooking them.  Silly but true.

solar_oven_condensationAnyway, now I’m starting to get into the solar cooking routine although I’m still learning the ins and outs; we had some rather crunchy baked beans last week that hadn’t cooked quite long enough - although the flavor was excellent!  I’m also on the hunt for the perfect solar cooker dish.  Ideally, it would be an oven-safe dark colored pyrex or ceramic dish with a tight-fitting lid.  Right now I’m using a white casserole dish with a clear lid and covering it with a blue cloth to try and soak up some extra heat.  It works pretty well but the lid isn’t quite tight enough to keep in steam and so the top panel often gets covered in condensation, which reduces the amount of sunlight reaching the food.  It’s a common challenge for solar cooking and one solution is to vent the lid slightly but that also reduces cooking efficiency.  I have seen a lot of variations of solar cookers and it would be pretty easy to build your own.  This one is a little bulky but it’s well constructed with a moveable set of reflectors, a plexiglass lid on a rubber lip, and a shelf inside to keep the pot off the bottom of the oven.

solar_oven_checking_beans

I set the solar cooker up on our front porch (which is south-facing) and let it cook from about 10:00 to 4:00.  If I’m home, I’ll turn it a couple of times during the day so that the reflectors capture as much sun as possible but if I’m going to be gone, I just leave it pointing as close to due south as practical.  On a sunny day, the oven quickly heats up to 250 degrees.  On a cloudy day, it tends to hover at more like 150.  So far I’ve been sticking with grains and beans but I’d like to try some bread recipes and maybe a quiche.  I was surprised to see that egg dishes are considered fairly easy for the solar cooker but the reasoning is that they cook pretty quickly so you don’t have to have a perfectly sunny day.  I am also contemplating using the solar cooker to sterilize some potting soil for my next round of seedlings.

Have any solar recipes or tips to share?

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We’re Eco-Experts

It’s funny how writing a blog can set you up as an authority figure, and occasionally lead to fame and fortune.  We’ve been doing pretty well in the fame department but could use a little more fortune!

Most recently, I was contacted by a reporter in Canada for the article  “Aunt Jemima no more: Foodies make their own maple syrup” about urban maple tapping.  I was pleased she located a few other urban tappers with a little more experience under their belts since we really only tried it the one time with limited success.  I really do think urban maple syrup is a great idea for folks to pursue; it just hasn’t made it very high on our green list.

A few weeks ago, we got an e-mail from a reference librarian (also in Canada) looking for information on greasecars.  She was hoping we could help a patron who was looking for sources of vegetable oil in Edmonton and I’m afraid I wasn’t very helpful.  (In fact, I had to get out my atlas to locate Edmonton - it’s in Alberta, way north of Missoula, MT and pretty far north of Calgary.)

Still, it’s fun to feel connected with other green folks who are trying to do their little piece.  So keep the questions and interviews and suggestions coming!  (And if you can find some fortune, that would be nice too.)

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Standin’ On the Corner, Waitin’ For the Bus

So, I think I have complained before about the lack of transportation alternatives in Bloomington and how hard it is to get to other communities.  Part of my focus has been complaining about the lack of trains in the area but there also have not been good bus or car-share options.  Happily, there are a few new developments happening - plus a couple that seem to have escaped my notice when they arrived.  I haven’t tried them all out yet but here’s the breakdown of motorized transportation options in Bloomington that don’t involve owning your own car.  (Walking and biking are also important, of course - and don’t forget dog pulling!)

Getting Out of Town

1. Bloomington Shuttle Service - originally just provided service to and from the airport ($15) but now they also have weekend service to Chicagoland where you go Friday night and come back Sunday night ($82).  However, the stops are all in the Chicago suburbs so I’m not sure what transportation options there are to actually get into the city.  (A quick Google Transit search says there’s no super easy option since malls tend to be located on interstates rather than subway lines).

2. Star of America - also started here with a focus on transportation to and from the airport ($15) but now also offering service to Chicagoland that is similar to the Bloomington Shuttle Service but a little cheaper.  I think they also offered a few special summer trips last year, including one down to the “Splashing Safari” water park as a day trip.

3. Miller Trailways - a little closer to a Greyhound type service with a number of set routes around the state, mostly connecting Indianapolis with other big cities but stopping at smaller towns along the way.  We are on the “Indianapolis-Evansville” route which means we could catch a ride either headed north to Indy or headed south and west to places like Bedford, Paoli, Vincennes, and Evansville.  I would definitely consider paying $16 to ride the bus down to Paoli instead of driving and am glad that the Amish communities in that area do have a bus option when they need it.

4. ZipCar - Yay, we have a zipcar now!!  This is very new to Bloomington and Indiana University.  Anyone can become a member and then rent a car by the hour or day although there is a discount for IU students, faculty, and staff.  It’s not the cheapest option in the world but neither is owning a car and I’m very happy this option is available to us now.  (There are also other car rental places in town that tend to be a little cheaper for longer term rentals.)

5. ZimRide - This is another cool new program that is designed to encourage ridesharing.  It’s basically an internet-based rideshare board but you can also rate people as good or not-so-good ride options so it will hopefully help people find ways to build a network of safe ride options.  Alas, it does not appear to be up and running for IU just yet but I know the university signed a two-year contract only a couple weeks ago so hopefully it will be available within the next month.

Getting Around Town

1. Bloomington Transit - basic bus service within city limits, nice reliable service, fairly cheap ($1.00/ride), can be time consuming depending on where you’re trying to go, especially since almost all routes go to the bus station downtown.  I still want to launch my “bus fairy” concept where route information would be posted at every bus stop so when you’re wandering around town you can understand your city bus options.  I think this might help people start to consider the bus as an option (as in “Gee, it turns out I could hop on the bus right outside of my apartment and be downtown in ten minutes!”)

2. IU Campus Bus Service - basic bus service around campus, free for students and employees (and I don’t think they check IDs), I myself have never quite figured out the routes (see the “bus fairy” idea above).

3. Rural Transit - this is a great service that does not get enough press, possibly because it’s focused on areas outside of Bloomington and possibly because if too many people found out about it, they would be overwhelmed with requests.  Basically, the rural transit buses are designed to help folks in the county get into Bloomington, Elletsville, Spencer, and other nearby towns.  There are a few set routes (including one I used to ride to Ivy Tech when I worked there) and what they call “county sweeps” where they will pick people up at home out in the county in the early morning and deliver them to the Bloomington bus station in time to take a city bus to work.  There is also a special service where you can call 24 hours in advance and ask to be added to one of their routes.  They have specific routes each day of the week so if you live in Smithville,  Wednesday is your “route” day and you can call to be picked up and taken anywhere along that route - picnic at Fairfax Beach, be dropped off in downtown Bloomington, visit a friend in nearby Clear Creek, etc.  The price for a ride is $0.75.  Pretty amazing, right?

4. Fresh Air Taxis - Okay, this is not a motorized transportation option but I thought it was cool enough to include - we now have a bicycle rickshaw service in town.  As an interesting side note, the city ended up modifying city code to create some guidance for bicycle rickshaws when they were approached for a business license and the business did not fit into any of their regular slots.

So, I’m feeling a little better about the state of alternative transportation in Bloomington.  There are still many, many improvements that can be made and I hope to push them forward with my new position on the Bloomington Commission on Sustainability.  Let me know if you have specific suggestions.

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Canines for Alternative Transportation

saffron_pullingWe’ve been working with a trainer named Deb to help Saffron become a better behaved pooch and to find ways to channel her intelligence and energy.  Saffron truly seems to love learning new things and earning our attention (and treats).  She has made great strides in learning to sit, stay, heel, and drop it on command.  So we were very interested when Deb suggested that we train Saffron as a pulling dog to take advantage of her stubbornness, her athleticism, and, well, her inclination to pull hard whenever the opportunity arises.

We got her a harness from The Working Canine and tried it out during a training session with Deb last week when there were a few inches of snow on the ground.  She took to it quite well and seemed utterly unconcerned about dragging a crate of golf balls behind her as she trotted around the training ground.  Of course, she did manage to topple it and send the balls flying so we experimented with a sled and found that she was able to pull me around but had to be coaxed getting started.  (Perhaps it was our months of training her to stop pulling when we stopped moving on our walks.  Maybe.)

Itsaffron_maggie snowed another eight inches on Monday so we took her out yesterday at our house.  The snow was too deep for good sledding so she gave up when I sat in the sled.  However, she had no problem towing a sled with a 50-lb bag of sand.  Well, no problem except for getting the sled tangled up as she followed her nose in pursuit of squirrels, rabbits, and the groundhog that lives under our back shed.  (Need to motivate your dog to pull a heavy sled?  Simply arrange for a groundhog to be located at your final destination.)  We all had a good time playing in the snow until the shivering got intense.

As much fun as it is just watching her pull stuff around, there are competition dog pulls out there where dogs compete to see how much weight they can pull a short distance.  Saffron is a lightweight (under 60 lbs) but some of the big dogs have been known to pull carts with wheels that weigh over 3000 lbs!!  Deb’s going to organize a pulling demonstration this spring and make Saffron the star, which will be a lot of fun and hopefully help her become even more socialized.

Saffron and her HarnessHowever, Will’s ultimate dream is to hook her up to a small cart or perhaps a scooter and have her pull us all around town.  I love the idea except I’m not what we’ll do with her when we reach our destination.  There was a time and place when every grocery store had a hitching post but even if that were still the case, I’m not sure Saffron would sit quietly with her feed bag like a horse might.  Still, we’re excited about the alternative transportation potential and are looking forward to being the talk of the neighborhood with our pully dog and her happy harness.

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Using Energy for Good

Seed Starting ShelvesSo we signed up for the SIREN Energy Challenge and have been trying to figure out where we use electricity and how we can cut back, which means Will is running around using his Killowatt on everything.  At the same time, I am planning my garden for spring and also thinking about how we will take advantage of the summer bounty.  My dad helped me set up a seed starting system with three shelves of fluorescent lights and I’m trying to talk Will into getting a chest freezer so we can store the summer’s vegetables but all he can think about is the increased electrical consumption.

It’s a tough balance!  We have managed to cut down on our natural gas consumption this winter despite unusually low temperatures.  I hope it’s from our vigilant caulking or perhaps our installation of a homemade insulating curtain over the window by our bed.  Still, our electrical use seems relatively high even after replacing our water heater (which we thought was wasting a lot of electricity).  The two main suspects right now are our refrigerator and our laptops.  Laptops are more energy efficient than desktops but we both do use our computers quite a bit since we mostly work from home and we also use Will’s laptop for much of our TV and movie viewing.

I think we’re getting close to the point where we can’t cut much more energy use without major changes to our standard of living.  I also think that it’s reasonable to use electricity for food production and storage, since homegrown food has other benefits in the form of increased nutrition, lower grocery bills, higher assurance of organic quality, and reduced transportation of food.  Still, it’s always tough to evaluate all the pros and cons and I know for now much of my lobbying is based on the fact that I’m super excited about gardening.

Did you know it’s not too early to start planting seeds indoors, even though it’s freaking cold outside here in Indiana?  I am ready to plant onions, kale, Brussel sprouts, cauliflower, and cabbage so I have nice fat seedlings ready to transplant when the ground thaws in March.  (All those except Brussel sprouts are available through Nature’s Crossroads and I’m enjoying the employee discount on seeds very much.)  I suspect this will be another year when I bite off more gardening tasks than I can keep up with but I’m really hoping this will be the year that I feel like I mostly get it.  Of course, there’s always more to learn so I won’t be too upset if I face a few more garden disasters…

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SIREN call for energy conservation

SIREN Energy Showdown posterThe Southern Indiana Renewable Energy Network (SIREN) is a local group dedicated to increasing the amount of renewable energy used in the area. This is an especially important goal around here, since almost all of our power is currently produced by coal.

Maggie and I have gone to one or two meetings and found them very interesting. Their focus appears to be primarily solar energy, with several group members getting together to buy solar panels in bulk. Unfortunately, even then solar panels are expensive since Indiana doesn’t have any solar incentives. As near as we’ve been able to figure, our break-even period would be over 30 years, which makes it hard to justify.

Recently, however, SIREN has begun advertising the SIREN Energy Showdown. The goal of the contest is to get people to reduce the amount of electricity they use in 2010 as compared to 2009. Although you have to meet certain requirements to win prizes (owning a house in Monroe county, etc), anyone can sign up to play for fun. If you do qualify, you can sign up to win some cool prizes, including a 1kW solar system as the grand prize.

We’ve already signed up and are looking forward to tracking our electricity more carefully. I’ve started checking our daily usage instead of just our monthly usage and I’m using my Kill-o-Watt to figure out what our big energy hogs are. I don’t expect that we’ll win anything (we’ve already done most of the easy stuff), but I think we could still reduce our usage by 10%. Reducing our electrical usage by 10% could save us more than $60 a year. According to my back-of-the-envelope calculations, it would also reduce our CO2 production by over half a ton!

Even if you can’t compete, I encourage you to sign up and see how much you can reduce your usage. Let me know if you do sign up and especially if you have any good energy-saving tips!

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Trashion and Refashion

Trashion Dress from 2009 UMM Fashion ShowI’m on the board for a local group called the Center for Sustainable Living and a few folks from the center are organizing the first ever Trashion/Refashion Show in Bloomington, to be held on February 20th.  The concept is straightforward - anyone can design and submit and outfit that is either made of stuff that would otherwise be thrown away (trashion) or old clothes remade into something new (refashion).  There are some folks from the IU design department involved but I expect a lot of the entrants to be just regular Janes and Joes with a bit of flair.

I am not sure that I qualify, having both dubious fashion sense and a lack of sewing skills.  I am also realistic enough to know that I have missed the boat for having anything resembling an outfit complete by January 1st (which is the deadline).  However, people are also invited to submit single items that will be sold in a silent auction.  There, I think I might be able to pull something off.  In fact, my father (of all people) came up with the brilliant idea of converting old ties into new suspenders.  There is someone on etsy who is doing it but I think it’s a great concept.  Executives who are about to retire could mail in their favorite (or least favorite) ties and have them converted into a useful keepsake.

One of my co-workers is planning to take some of our old seed packets and convert them into a skirt or vest or hat or something so I could try to help her out.  Ooh, maybe what I need to do is convert some of our old holey socks into dog clothing, since the dog does seem to love old socks and she has been shivering in the cold.

Have any brilliant ideas to share?

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