Renewable Energy

The best advice on energy efficiency, solar power, wind energy, living off the grid, and more.

Biogas in Winter: Heating a DIY Biogas Digester

By Warren Weisman

With a little bit of planning and DIY know-how, it is possible to thumb your nose at old-man winter and enjoy biogas in subzero temperatures.


Biogas All Stars: Marcello Ambrosio

By Warren Weisman

International non-profit biogas professionals and their projects.


Life. Off the Grid.

By Phillip Vannini and Jonathan Taggart

This initial blog post tells the story of how Phillip Vannini became interested in off-grid living and how he began — together with Jonathan Taggart — to do research on the off-grid lifestyle in Canada.


Complete Biogas: Designing a Low-Cost, DIY, Biogas Digester for North America, Part 1

By David William House

There are two things that are true about biogas. The first is that biogas wants to happen. It wants to happen like plants want to grow, like fire wants to burn. And that force, that will to happen, has (at least) those two aspects: life, like the plants; and chemistry, like the fire.


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Maine’s First Net-Zero Energy School Under Construction

Press Release

The new home for Friends School of Portland will be only the third school in the United States to achieve Passive House certification.


Complete Biogas: Temperature and Biogas, Part 2

By David William House

Did you know that you're going to have to make your digester either much larger or much warmer, if you expect to do practical biogas in the US? Well, here's that story...


Biogas at Home

By Warren Weisman

Renewable energy's ugly duckling comes of age.


How to Make Biogas in 5 Easy Steps

By Warren Weisman

This article does not get into home biogas gas yields or what biogas can be used for, but it is a basic introduction to the five necessary conditions for how to make biogas at home to get you started.



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