Real time prices go negative in U.S. energy markets as well. Usually during off peak hours with a high percentage of wind generation in the zone. Look at the N

Real time prices go negative in U.S. energy markets as well. Usually during off peak hours with a high percentage of wind generation in the zone. Look at the North Zone of New York, it spent a good chunk of Sunday negative: http://mis.nyiso.com/public/csv/realtime/20160508realtime_zone.csv http://mis.nyiso.com/public/csv/realtime/20160508realtime_zo... Use the LMP column(Locational Marginal Price) It should be noted that most energy is purchased in the day ahead market, which I can't recall seeing negative - although maybe in Texas (ERCOT). The provider will need to buy back the energy in at the realtime price if they are not generating. But I am not sure about the market rules for negative prices.