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Archive for March, 2012

A Business Model For The Next Decade

Monday, March 26th, 2012

This post covers my attempt at modeling both the old and the new economic models discussed in Michael Bauwens article. I also discuss how the repercussion of the new economic model are captured in my drawings – the big one being that open source technology unarguably creates value at higher efficiencies (lower cost), but rarely replaces the share of market value (dollars) when it displaces proprietary competitors.

Introducing the v4 Charge Controller

Wednesday, March 21st, 2012

This article covers my latest efforts in the Free Charge Controller project. I’ve been working with Jameco to create a development kit for a new version (v4.01). The development kit that Jameco will soon have available for order is a huge step up from my original efforts to build a kit. The design is built on top of an Arduino and is based on Tim Nolan’s design. A charge controller schematic of the design is available.

Free Charge Controller Kit – Part 2 – Preparing to Assemble the Power Circuitry

Thursday, March 15th, 2012

This is the second part of a multipart series of articles describing how I constructed the v4 Free Charge Controller kit from Jameco.

The Need For Solar Powered Attic Fans

Wednesday, March 7th, 2012

The need for a cool attic cannot be overemphasized. In case high temperatures build up in the attic, the performance of your air conditioning unit will also be affected. At the same time, your energy bills will shoot up. When heat and moisture in the attic is kept to their respective minimums, the energy efficiency of the house improves considerably.

Solar Efficiency Records Rise as Prices Promise to Fall

Saturday, March 3rd, 2012

Solar panels grow more efficient with each passing year. Spurred by private and government sponsored research, efficiency records in thin film solar modules fell at least three times in the past year. Competing technologies spark this race to converting sunlight into electricity, which currently hovers at about 17.4% efficiency.