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THE ENERGY GEEK

WORKING TOWARDS SUSTAINABLE COMMUNITIES

Net-Zero Energy Building

What Makes an Energy Efficient House? How to Conduct a Blower Door Test. This series follows award winning builder, Bob Irving, as he builds several net-zero homes. Watch the first video in the series, Net-Zero 1. One of the biggest differences between a standard house built to the NH Energy Code is how much air leaks in […]

Record Solar Module Efficiency Recorded

Alta Devices, a California-based subsidiary of Hanergy Thin Film Power Group, set a record for conversion efficiency of 28.9% for a single-junction solar module, it announced. The US National Renewable Energy Laboratory rated Alta Devices’ single junction GaAs module as the world’s most efficient single-junction solar module. [Renewables Now]