Tag Archives: solar

What do I make of Powerwall?

While Tesla’s Gigafactory is bringing down the *financial* cost of batteries, the *energy* cost of building them is still the same. And that cost is huge. So huge that once counted in the energy accounting of a wind and solar … Continue reading

Posted in Renewable energy, Storing energy | Tagged , , , , | 6 Comments

NREL and the baseload myth

One of the great problems with charging a whole fleet of electric cars is how would the grid cope. Would we have to double our daytime capacity and build out a super-grid as electricity demand skyrocketed! But NREL to the … Continue reading

Posted in Electric Vehicles, Nuclear, Storing energy | Tagged , , , | Leave a comment

Fossil fuels in disguise

Hi all, I always thought wind and solar had a pretty good ERoEI which stands for Energy Return on Energy Invested, or Output / Input, or how much energy you get back after counting the energy it took to build … Continue reading

Posted in Solar | Tagged , | 1 Comment