Renewables are greenest when displacing coal, not gas.
With the abandonment of a nationwide energy policy by the previous Congress, states continue leading carbon mitigation efforts. Indeed, existing state policies and renewable portfolio standards (RPS) are already having a significant impact on the U.S. generation portfolio. FERC now proposes to weigh state policy as a consideration in transmission filings. Should state policies guide federal action? Will they suffice to reduce carbon emissions?
Modern approaches to system operations and forecasting make the most of variable energy sources.
Nobody disputes windpower’s variability; that’s a given. But modern approaches to demand management, grid integration and wind forecasting are making windpower more predictable and grid friendly. And technology companies are marketing a variety of equipment and services to support a growing base of variable wind capacity—sort of like a virtual Country Kitchen Buffet for the windpower picnic.