Category Archives: Uncategorized

Diesel Generators, Load balancing, Storage

Diesel Engine info, prices… Heating Value of Fuels Diesel fuel efficiency table Online Fuel Calculator http://www.gopower.com/ http://www.dieselgeneratorsmiami.com/ 2 kW Honda inverter  generator: ~$1,000. 4 hrs to empty  1.1 gallon tank at rated load 1,600 watts 1600 watts / [1.1 gal … Continue reading

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Azolla duckweed aquatic plant

A good 12 page document from fao with technical/scientific data: Floating aquatic macrophytes – Azolla “Because Azolla has a higher crude protein content (ranging from 19 to 30 percent) than most green forage crops and aquatic macrophytes and a rather … Continue reading

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AC-Coupled Mini-grid info

from SMA Review: One of the coolest features of the SMA Sunny Island 4248U Inverter is its ability to create a ‘mini grid’ in off grid remote areas. The Sunny Island can power the grid in a small community. Then … Continue reading

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Serenity Gardens House Floor Plans

For more info, go to Serenity Gardens EcoVillage. (Scroll to bottom of page for floor plans and energy calculator…)

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Compressed Earth Block (CEB) Construction

Hydraform (Suggested by Paul Thomas: He’s interested in importing to CR. Reported cost is $50,000.) A world leader in masonry construction and the manufacture of hydraulic block machines, Hydraform specializes in using soil cement Compressed Earth Block (CEB) technology to … Continue reading

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Cassava (or Yuca) at OMV

Today, Leyli came to the house with this yuca root in hand, to show me what will grow here with virtually no maintenance (beyond the work of digging it up). I had been asking him about what we would need … Continue reading

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Solar food dehydrator

From Practical Action Technical Brief: Basic principles of drying Drying depends upon: Temperature, humidity and quantity of air used Size of the pieces being dried Physical structure and composition Airflow patterns within the drying system Heat is not the only … Continue reading

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Evaluating Solar PV

On April 1st and May 1st, 2012, I read the electric meters on our street at OMV. (The meters were first hooked up to the grid in early March.) Here are the readings, and calculated costs based on current ICE … Continue reading

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Cyclone Power Technologies

A modern steam engine, from Cyclone Power Technologies Consider for use in our Waste-to-Energy center. Burn multiple fuels or even use with solar, grid tied. Wonder if could pyrolize biomass with the exhaust temps. CPT has two different engines: a … Continue reading

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Things to consider when selecting light bulbs

From Consumer Reports… For starters, choose Energy Star-rated bulbs. They meet high standards for brightness, color, and energy use, and the mercury content is capped in compact fluorescent lightbulbs. Additionally… Consider the fixture When replacing a bulb, choose a new … Continue reading

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