Re “Wind Energy Bumps Into Power Grid’s Limits” (“The Energy Challenge” series, front page, Aug. In areas where the electric grid is overloaded or does not exist at all, the solar, wind or other forms of renewable energy can be stored in hydrogen. During the night or when the unit cost of electricity is high (peak periods), it can convert the stored hydrogen back into electricity. Additionally, it must now bring power from location-constrained clean energy resources like wind, solar, geothermal and biomass as well as from other low-carbon resources like additional nuclear plants and potential low-carbon coal generation. After a quarter-century of underinvestment, with national electricity demand slated to increase by one-third in the next two decades, and the grid already tested to the limits of its capabilities, we cannot start soon enough to plan to expand and upgrade these vital facilities. read more
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