By adding utility-scale solar farms throughout New York state, summer electricity demand from conventional sources could be reduced by up to 9.6 percent in some places. But Cornell University engineers caution that upstate winters tell a different tale. With low energy demand around midday in the winter, combined with solar-electricity production, New York's power system could face volatile swings of "ramping" - which is how power system operators describe quick increases or decreases in demand.
