3 ms·

Don't know why this got downvoted. It's true. PV might take us the next 100 years. Fusion might be necessary for the following 100.

• mdorazio 8y ago
  It got downvoted because it is not true. PV scales so well that people are voluntarily throwing panels on their roofs to reduce their energy bills. It scales so well that even with current single junction cells, we could cover just 1% of the Sahara with panels and meet the entire world's energy needs. When multi junction gets cheaper, it's basically end game for power generation. And you're probably going to say that storage is a problem, but again storage is something that scales so well people and utilities are buying battery systems all over the place while multiple giga-scale battery factories are coming online in the next 5 years to push prices even lower. Plus High voltage DC power transmission can get power thousands of miles with surprisingly low losses. And why do you think fusion might be necessary for the following 100 years? Energy use per capita has been dropping in developed countries for years. Fusion really only makes sense as a "must have" technology for space exploration, which current reactor designs are so far away from it's basically a joke.