100% renewable electricity means hydropower in Washington

First, a clarification: Last week’s headline said we can expect 100% solar and wind energy on the grid in the future. Although that’s likely to become feasible within the next 20-30 years, I don’t think it’ll happen in Washington. We are, however, likely to have 100% renewable energy by 2050. Solar and wind will be prominent, but hydroelectric generation will still be used and geothermal energy may even be developed. Iceland and New Zealand have 100% renewable electric systems already because both are rich in hydroelectric and geothermal resources.

Hydroelectric power is the most prevelant ren...