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A DIY E-bike Conversion on the Cheap

Cars That Think

Being an open-source design no doubt keeps the price of this hardware down: The controller I bought set me back a mere $85. Online discussions convinced me, however, that this is the expected behavior when commanding a motor to maintain a fixed amperage in its windings (thus applying constant torque) while under little load.

DIY 145
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A DIY E-bike Conversion on the Cheap

Cars That Think

Being an open-source design no doubt keeps the price of this hardware down: The controller I bought set me back a mere $85. Online discussions convinced me, however, that this is the expected behavior when commanding a motor to maintain a fixed amperage in its windings (thus applying constant torque) while under little load.

DIY 98
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We’re the New Renewables

Cars That Think

JUICE BOX For many years, environmentalists have looked forward to the coming of net-zero-energy buildings. Now residential and commercial buildings can be outfitted with roofing tiles that double as solar panels, or with rooftop boxes like this low-profile unit that transforms gusts of wind into electric current. Gabriela Hasbun

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We drove the 500hp electric Arc Sport and holy heck, this thing rips

Baua Electric

But the Sport is a wake boat, a more specialized type of boat, and it’s a downright steal compared to that model, starting at the low-low price of $258,000. Though between the noise of splashing water, buffeting wind and 500 horsepower, things get a bit noisier when getting up to the electronically-limited top speed of 40 knots.

Water 52
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Cleantech Blog: Smart Grids and Electric Vehicles

Tony Karrer Delicious EVdriven

Solar, Wind and Biofuels Grew 53 Percent in 2008 Green Education = Environmental Religion? Millions will plug-in their electric vehicles (EV), plug-in hybrids (PHEV) and fuel cell vehicles (FCV) at night when electricity is cheap, then plug-in during the day when energy is expensive and sell those extra electrons at a profit.

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