Saving Energy for Practical People — Part 2
Jul 31st, 2008 | By Philly | Category: How-ToTable of contents for Practical Energy Saving
I haven living with ADD (or ADHD) isn’t as easy as some people think … nor is living with an Internet Service Provider who thinks that providing little or no service 12 or 14 hours a day is acceptable. (I’d be totally up to speed if I get up at three am every day, the service really "sings" about 0400 … but then around 8 am or so it switches to Japanese and then says, "Sayonara". But hey, that’s life in the Philippines and right now life is indeed good.
This idea of exploring energy costs and savings could not have come at a better time …right after the holidays we are probably starting on a house building project and since I will be the major decision-maker/risk taker, I am going to make an effort to do it right this time around.
Now there are a lot of alternative sources for electricity but I am not going to bore you with them. Also, there is only one that I am familiar with and which is easily useable anywhere in the Philippines, and that is solar. There are some places in the Philippines you might be able to use wind generation and some locations that geothermal would be practical (the Philippines is a world-leader in commercial geothermal energy production) but in general the average family is going to want to look at solar to solve most of their needs,
Let me take al closer look at a very interesting question that Ellen posed a few weeks back. She wondered how a house that would need 4 or 5,000 Watts of power could be set up on solar, in practical terms. The answer, in today’s world is, unless you are a very rich person, it can’t. The solar collectors (Photovoltaic or PV) panels and the amount of batteries needed to provide that much power during the night would easily run $30 or $40,000 USD. Of course, if you want to live somewhere where there is no commercial power then this might be an alternative. But I think it’s unconscionable to build a house that consumes that much, no matter what’s in your bank account.
I have seen lots of people giving advice for things like portable generators and advising people to by 5 or 8 or even 10 kilowatt units. I think the ‘thumbnail’ engineering involved in these thoughts revolves around looking at facts such as the average American house having what’s typically called "100 Amp service" (which, at 110 volts would be approximately 10 kilowatts). But the cheapest, "bestest", fastest way to save money doesn’t involve solar cells at all … it involves adjusting you needs to fit a decent, but non-US life style.
First of all the single highest consumer of power in your US house today, on an every day of the year basis is your refrigerator. This is also the appliance you are least likely to be able to do without. So how would you handle refrigeration for your Philippine home if commercial power is a big concern price-wise … or if you want to live where the "grid" doesn’t yet exist? Well there are three quick answers which come to mind and here are just a couple examples to set your mind thinking out of the US "it can’t be done" mind set.
- Solar Powered refrigerator: You likely though NASA simply burned off money on space explorations, didn’t you? I was looking for what was available in conventional solar ref systems which would normally require a ‘box’, a solar panel and batteries to provide the ‘cool’ when the sun wasn’t there. But here’s one that is totally solar powered, no batteries required (up to 7 sunless days (try finding that in the Philippines)) and is already commercially available. A quick price check showed them in the $1300 USD range, which, if you’ve bought any conventional "power sponge" refrigerators lately is not all that far out of line.
- RV-Marine style 3-way refrigerators: This was my first thought before I found out how many fully solar refs were available today. The link goes to just one sample of hundreds of different manufacturers/models. The 3-way refers to using standard household "grid" power, 12 volts from a battery (recharged by a solar panel array) or LP (stove) gas. I lived with an older, less efficient box like this for several camping summers in Colorado … the box ran almost exclusively on my trailer’s propane tank (usually the ref was on from memorial Day until after Labor Day), and with refrigerator, stove and water heater in use for several weeks total out of the summer I never used more than one 30 pound Propane tank.
- Gas and Propane Refrigerators: This will likely be the least familiar category to most of my American readers, but totally familiar to those who hail from countries like Australia where huge sections of the landscape have no grid and are unlikely to ever have one … the Outback in other words. Also known as ammonia absorption machines, these boxes have been keeping the milk fresh and the beer cold on remote cattle stations for more than a hundred years.
Wow … I was wondering if I could make blog post out of refrigerators alone … turns out I could and more so. Let’s look at where we are in my overall plan of showing you how you can use alternative energy to live well in the Philippines:
- Space Heating: Not needed
- Water heating: See my earlier article here. There’s really no excuse of not going 100% solar on this in the Philippines. No need for electric (commercial or solar) or any fossil fuel use. Use of electricity to heat domestic hot water in the Philippines … yes those ubiquitous little flash heaters next to the faucets, is one of the most wasteful and inefficient things I have seen. Why it is so hard to sell economical and so easy to sell wasteful products here I will never know…
- Electric Consumption: Today we looked at refrigeration, tomorrow I’ll show you how little you really need for lighting. After that we’ll tackle the big one … air conditioning.
Happy conserving!
Related posts:
- Saving Energy for Practical People — Part 4
- Saving Energy for Practical People — Part 5
- Saving Energy for Practical People — 6
- Saving Energy for Practical People — Part 3
- Saving Energy for Practical People
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Hi Philly: Good to know that the solar powered ref uprights are also available in BC, Canada. It will be easy to send over through the Balikbayan transport system. Thanks. In the boat, we use the Engel Fridge/Freezer which consumes 0.7-2.5 Amps only. By the time we hit San Diego, we knew our regular marine fridge from Vancouver was just consuming too much power and draining our batteries. We ordered Engel through the internet and we were very happy with it ever since, running 24/7 and no maintenance at all.
@Ellen: Thanks for the report, Ellen. Indeed it’s always easier to write about these things when there are others around who have proven to themselves that there are alternatives.
I know that if there was apractical way to do so I’d get an Airstream trailer like I spent many happy days in and bring it here to the Philippines … wouldn’t travel much I’d just live in it … the level of comfort I could attain there for much less energy than I expend now would be amazing … and I like the idea of a tight environment with a place for everything and everything in its place. Even though our present house is small by American standards my wife and I tend to rattle around in it … the third bedroom is stacked up with stuff in just 20-odd months of living here .. I’m responsible for most of the junk but I really can’t say how it got there … too bad having a maid didn’t work out, when she was living in the thrid bedroom it stayed clean