NYISO power prices jumped sharply in December on the back of sharp gains for natural gas stemming from extreme cold weather at the end of the month.

NYISO year-to-date monthly energy prices averaged $34.72/MWh in November, a 5% increase from a year earlier.

Among other news reported at the NYISO Business Issues Committee, year-to-date monthly energy prices averaged $34.89/MWh in October, a 4% increase.

NYISO year-to-date monthly energy prices averaged $35.34/MWh in September, a 3% increase from a year earlier.

NYISO’s Business Issues Committee approved revisions to the ISO’s Transmission Constraint Pricing Manual and discussed incorporating carbon costs.

The NYISO Business Issues Committee recommended the board approve construction of NextEra's Empire State Line in western New York.

NYISO’s Business Issues Committee approved steps intended to improve the efficiency of the interconnection queue process while maintaining needed reliability evaluations.

NYISO reported that locational-based marginal prices for June averaged $31.76/MWh, nearly unchanged from May.

Natural gas price spreads between Western and Eastern New York in 2016 led to NYC generation being “more economic than in recent years,” NYISO's MMU said.

NYISO presented its Market Operations and Broader Regional Markets reports to the Business Issues Committee.