Energy conservation

Cap the Grid

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As a species, we must learn to live within the physical limitations of the biosphere. In the electric energy sector, this requires reversing the worldwide trend of ever-expanding electricity supply grids carrying energy vast distances from more and more large, centralized power plants. “Capping the grid” is a crucial step toward reducing greenhouse gas pollution and increasing the percentage of electricity generated by renewables.

The speech Obama needed to make

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I’ve stayed away from politics pointedly in posts, because voting for either party is still just voting for growth, with different labels applied. I do not believe that the current corporate giveaway that we call a political system is fixable unless we elect a leader who is ecologically and energetically literate. I doubt that will happen. That said, here is an earth day wish for real servant leadership which would fix our problems. The post is directed at a specific leader, Obama, since the United States is the worst offender in terms of extreme behavior and unsustainability.

Energy transitions – May 2

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•Small-town mayors: the cutting edge of climate action •How are communities raising serious money for green energy projects? •Is 70 Percent Renewable Power Possible? Portugal Just Did It For 3 Months •Germany’s Energy Transition Experiment •London’s cooking waste to fuel power station •Lessons From Thailand: Mobilizing Investment In Energy Efficiency

Energy transitions – Feb 13

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•Solar for All •Energy-Efficient Mortgages now widely available in the US •EDF asks would you do the washing when the wind is blowing? •Energy Co-ops Bring Energy by the People, for the People Through Social Innovation •Why councils could be the answer to the energy crisis

This Thermal House

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If you want to make your house more efficient at repelling the unpleasantness outdoors (whether hot or cold), what should you do first? Insulate the walls? Insulate the ceiling? The roof? Better windows? Draft elimination? What has the biggest effect?  While I have regrettably little practical experience tightening up a house (it’s on my bucket list), I at least do understand heat transfer from a physics/engineering perspective, and can walk through some insightful calculations. So let’s build a fantasy house and evaluate thermal tradeoffs at 1234 Theoretical Lane.