Developers have applied to build 139 GWac of large-scale solar projects in the territory of six grid operators – around five times what is currently online across the country – and that figure doesn’t even cover the entire United States. By any metric, we are looking at an unprecedented boom in solar development over the next five years.
Some of it is the pending drop-down of the Investment Tax Credit from the end of 2019 through the end of 2023. Some of it is a series of decisions by states, cities and corporations to decarbonize their electricity supply, and to use solar as a main means of doing this. And some of it is the continual decline in PV system prices, which makes large-scale solar the cheapest form of new generation in much of the United States.
But whatever the cause, there is an unprecedented, massive volume of solar projects that is underway in the United States. Research conducted by pv magazine USA has uncovered more than 139 GWac of solar projects which have applied for interconnection with six grid operators (CAISO, NYISO, ISO-NE, MISO, PJM, ERCOT) by the end of December 2018, spanning the Northeast, Midwest, California and Texas.
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