Energy Energy Efficiency Energy Efficient Infrastructure Power Generation Infrastructure

How to have an all-renewable electric grid

Power Generation Infrastructure

Are fully renewable electricity systems feasible? The article argues that feasibility is clear, and tries to answer how quickly can the transition be made.

  • Islands are attractive places for initial renewable transitions.
  • Having a diversity of renewable sources can reduce costs. In particular, solar and wind are complementary.
  • Batteries work well for smoothing short-term fluctuations, but for storing energy for many hours or days, pumped hydroelectric storage is less expensive.
  • Hydroelectricity and biomass power are available on-demand, so having these in a renewable electric grid shrinks the energy storage needs.