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Recent efforts show hope for regional transmission planning for renewable power.
With catalysts created by an MIT chemist, sunlight can turn water into hydrogen. If the process can scale up, it could make solar power a dominant source of energy.
Integrating solar cells into building materials could make solar power more attractive to homeowners.
A new material could cheaply convert sunlight into hydrogen.
A new way to concentrate sunlight could make solar power competitive with fossil fuels.
Silicon shortages drove up prices, but supplies are now increasing.
The silicon shortage that has kept solar electricity expensive is ending.
A California startup is cutting by half the amount of costly silicon used in solar panels.