New electric power connected to the electrical grid from wind and solar PV sources have a challenge to overcome: they fluctuate.

What’s the problem? Electricity doesn’t wait for the fluctuations, and when the power they delivery hits a low (even for a few minutes), something else like a internal combustion generator needs to kick in, ramp up quickly, and deliver electricity until the renewable low comes back up. This is a problem because it really adds on to the cost of installing and maintaining these renewable sources.

Does anyone out there in NN-land have information on new technologies that are helping with this challenge? I’d love to hear about it.