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Germany Had So Much Renewable Energy That It Had To Pay People To Use Electricity (qz.com)
Quartz reports Germany produced so much renewable energy on Sunday, May 8, that commercial customers were being paid to consume electricity: "Thanks to a sunny and windy day, at one point around 1pm the country's solar, wind, hydro and biomass plants were supplying about 55 GW of the 63 GW being consumed, or 87%. Power prices actually went negative for several hours, meaning commercial customers were being paid to consume electricity." Many critics have argued that renewable energy will always have only a niche role in supplying power to consumers, given its daily peaks and troughs. With that said, Germany plans to hit 100% renewable energy by 2050. Denmark, for example, has already generated more electricity than the country consumes from its wind turbines. It now exports the surplus energy to Germany, Norway and Sweden.
I was skeptical so I checked.
Apparently the US has about 250 tons of nuclear waste. That should indeed fit in a not very large room - you could fit in barrels in a 20x20 meter room.
I do suspect that putting that much nuclear material in one room is a bad idea.. ;)
Three words: giant tesla coil
That should take care of any excess energy. Just don't stand too close! :-)