One challenge in connecting more renewables to the grid is how to balance fairly predictable demand with the more unpredictable nature of on-and-off sources like wind and solar.
Beyond that challenge, though, is another one that doesn't always get as much public attention: how to incorporate the impact of renewables into energy trading markets.
Making our power…
How smart are smart grids? Could they do the super hard Sudoku in the Sunday papers? Do they have doctorates in astrophysics? Can they get into a packet of digestives without using their teeth?
Greenbang doesn't know. She's never had one around for tea. But what she does know is that the US Department of Energy…