Monday, June 18, 2007

Appropriate level technology?

Reading on the oildrum about a renewable energy fair, I wonder when I have some money to invest, what sort of technology is appropriate for an urban home, specifically thinking of electricity generation.
http://www.theoildrum.com/node/2677

Overall my gut reaction is that home-generation of electricity (like wind turbines or PV) is one of those things that fails my sense of security, specifically (1) requiring battery backup to work off-grid, (2) Complexity of maintenance and repair.

OF COURSE, from a brain-dead issue of dependence, I'd consider automobiles as equally vulnerable technologies. I suppose a NG furnace for winter heating could equally apply to my concerns. I mean depending on any technology that someone else must maintain.

Perhaps this discomfort can extend to home-ownership in general. There's a high level of dependence to own your own home, dependence upon a service industry available to keep it running, and I'm only talking general dependence to throw out lots of money everytime something breaks, NOT even talking about fear of wider support systems failing.

I see primary two approaches to my fears:
(1) Rent from someone else who wants to deal with modern complexity and maintainence.
(2) Simplify my house to systems that are durable, that I can mostly understand, and comfortably do maintence myself.

Then there's a third approach, less visible in our society, but similar to renting but more at sharing - a cooperative.

I mean, SURE I might be willing to spend $20k to have a wind turbine built in my back yard, get all the batteries needed, install a wood fireplace/boiler to heat my water/home, etc. I DON'T do these things, and most people WON'T do these things because they are burdens, less convenient that delegating someone else to handle it.

I just have to wonder if there's not a middle ground between ONE and ALL. Rather than ONE unit per household, or ONE provider per region, perhaps there is technology most appropriate for neighborhood level cooperation.

Instead of my neighbor block containing 46 individual central furnance systems, 46 central air systems, 46 washing machines, 46 clothes dryers, 46 lawn mowers, etc, perhaps some of these needs could be shared? Of course this isn't a new idea, and its what apartment complexes and townhomes do. And of course there's no guarantee of better management or anything, but worth considering.

My neighborhood block has comes that were built around 1955-1970. They're nice relatively small lots (1/6 acre), but no common space besides the streets. Even with the limitation of shared property, I could imagine, for instance, that our block could be wired up for a secondary local emergency power switch that could be turned on whenever the central grid went down. Whatever our energy source, EVEN purely from the grid, our GOAL would be to be able to store energy in a local form that could be converted back into electricity when needed. Perhaps lead-acid batteries are best for cost? Perhaps hydrogen tanks? Perhaps pressurized air storage?

Maybe electricity storage isn't the best approach. Maybe it would be a steam boiler that runs on on various fuels that can run a generator?

The key ideas are: (1) Emergency use means costs can be higher and energy demand can be lower, by conservation at such time. (2) Whatever can be done at an individual household level can probably be done more efficiently at a collective level.

I think of when we had a storm in September 2005 and lost power for 5 days. Some neighbors bought generators to keep minimal power going. In September, we had no need for heating, so most of us just accepted the power being out, and lost some our our refrigerated/frozen food. But if it was winter, my house central-air furnace can't run without electricity. If we had an ice-storm that took out the power for 5 days we'd be in real trouble, not only staying warm, but keeping water pipes above freezing.

I suppose a "local storm" can take out a local electricity system as easily as a centralized one (given power lines above ground).

I accept it would be a lot of work to get a whole block of neighbors to work together, even if most accepted a danger existed, and a collective solution superior. Some will just reject cooperation as its own weakness, seeing too little management skills within the neighborhood to trust, or whatever.

I accept things developed as they did because we collective and individually were affluent enough to afford the "American dream" and there's a simplicity to a lifestyle of personal ownership and simple paid relationships for service as needed.

Anything that can be cooperative shared is going to have to probably start simple (to prove cooperation can be done), and useful enough to encourage people to try.

One dark side of sharing is generally those who "care the most" do the most, while the rest gain free benefits. Whatever cooperative approach was found, it still likely needs some personal accountability, something that rewards care and at least keeps costs connected as best possible to users.

Like myself, I don't own a car, haven't for 28 months. I imagine my average usage of say 2500 miles/year (when I had a car) makes it uneconomical. I might accept value in sharing a car among a neighbor or two who also are low car users. All fine and good, but car costs are rather uneven - purchase costs and maintainance can dominate fuel usage, and there's a general inconvenience if someone else gets in an accident, my whole life gets cut back until its fixed. I accept most people are well-off (and spoiled) enough to not want that inconvenience.

Well mostly I'm thinking about what sorts of technology to invest in myself, and what sorts are best shared. For te time being, I've got good investments for my home still available, like better insulation, windows for one. Overall I trust more "passive" investments, things that don't have moving parts and don't break down.

If I have extra money I might be better off investing in a wind farm than one for my house.

On a scarier side, I admit someday I might consider that my home/neighborhood isn't easily retrofitted with cooperative systems and another place might have both better opportunity and people who think like me. It is scary because change is hard, and I equally wish for whatever I do to be something someone else can do. I don't want to "leave" my home to someone else who will face the same limitations I face.

Monday, June 11, 2007

Carfree lifestyle?

Listened to Sen. Brownback's energy policy from 6/6/07:
http://www.eenews.net/tv/video_guide/620

He calls for energy independence (for North America) within 15 years. Is this possible? I don't think so, as we use energy now.

3 million barrels/day of Sand Tar oil from Canada by 2020? How is thing going to help with our 21 million barrel/day consumption?

20 billion barrels in ANWR? How long will that last us? 5 years?

Renewable fuels? Corn ethanol? Biodiesel? What about our food supply? Can we FARM without petroleum?!

Switchgrass and cellulostic ethanol? I'll believe it when I see it.

Electric cars or hybrids, much room to help with transportation, BUT we need better battery technology, AND we'll need to expand electricity production. Will we use more coal? (We have 250 years of coal???)

I have to stand firmly on the side of conservation as the most powerful tool, whatever the above ideas might help create a more sustainable source for our energy sources.

I'm just curious - is there ANY way to convince people that a "carfree" lifestyle is possible? Is there any value in subsidizing personal choices that consume less?

I've heard that efficiency and conservation merely help to bring energy prices down and encourage NEW consumption with the savings. It may be true, but if taxes can help price consumption higher, this tendency can be reversed. (Brownback is against this - such pandering!!)

I've been without a car for 29 months now. Very possible for a single person, although I broke my shoulder bone 5 weeks ago and haven't been able to bike since. Buses are sometimes nice, if you're not in a hurry. My normal commute is 20 minutes, but also needs walking time, waiting time.

I actually jogged 8.1 miles to my girlfriend's house last night in 67 minutes, a warm humid evening too, and then took the bus 8 miles today to work in 72 minutes, including about 2 miles of fast walking. That's 9 minute/mile pace. Sure you can say I got exercise and reading time, but I admit I'm not happy to consider commuting 2.5 hours every day.

Some people claim the cost of car ownership, spread out over the cost to earn the money to pay for it comes out to 5 mph (12 minutes/mile). But this must be considering pretty low wages, and I agree at least, that many people would be better off without a car (or with one LESS car), if they honestly assessed their costs, although the balance is dependent upon public infrastructure to provide an alternative.

Anyway, what if we offered a $1000/person/year tax rebate to every adult who chooses to not own a car. Perhaps there's loophole, like person A has zero cars, and person B has two cars, and person B loans car to person A. So an offset would need to add a $1000 TAX for every adult who owns two cars. Then there's the issue - a person might own two vehicles, a truck and a small car, and select which to use based on transportation needs. Is it really fair to tax that person for this smart policy that saves fuel? THEN, perhaps there's the person who owns ONE car, and only drives 2000 miles/year, is there no reward for this conservation?

No, the better policy is to tax gas consumption directly, $5/gallon, and then you can refund every $1000/year. If they consume less than 200 gallons/year, they'll get the rebate I suggested. Poor people who consume less are ahead, but poor people who consume more will have to consider adjusting their lifestyle if they can't afford the tax.

I just had dinner last night with a friend who is also single, and says he likes to take Sunday drives to see the country side. I don't want to "take away" his choice, but there's no reason to not ask him to pay for it.

The other side of consumption is that rich people can upgrade to high efficiency vehicles and plug in hybrids. Poor people take vehicles they can afford, whatever the mileage. Mostly that just means to me a need for a transition time, raising tax $1/gallon/year for 5 years.

Well, besides the subside, how can cities make a difference? At one level, they could zone transit friendly regions of the city as "carfree zone", or at least perhaps like narrow traffic calmed roads with even one way 5mph speed limits. Perhaps for larger areas, a few "transitways" can pass through.

Overall it is promising to do as much as possible to develop communities that can exist well without cars, where transit, walking and biking can meet most of the needs. And without parking lots, such regions can have more green space, more pedestrian paths, and overall a higher population density.

Well, not new thoughts, but I just wonder how how such things could be done, and if there's value in a national policy to promote them, for reducing our use of oil and energy.