solar

07Aug

When Down is Up

The reduction in the price of electricity from solar and wind power over the last decade has made for a fantastic story. But it’s hiding a more complex and troubling truth. While the price of generating power from renewables has fallen, the cost, or burden, of integrating these intermittent sources of power onto the grid […]
05Jun

Driving Up the Cost of Power for Consumers

Making an apples to apples comparison of new weather-dependent renewables against existing coal or nuclear power plants cannot be done – at least not with our existing tools. Not only are you trying to compare one source of variable power to dispatchable, baseload generation that’s available 24-7, but you’re also attempting to compare a facility […]
17Apr

Batteries: Great Promise, Even Greater Hype

Lithium-ion batteries are everywhere. From our smartphones, computers and tablets to electric vehicles, we are in the midst of a battery revolution. But for all the promise of batteries, there are limitations. There are physics problems that dictate how batteries can be used, or should be used, that need to inform our energy policy. Unfortunately, […]