A Rocky Mountain Institute study in September said that 90% of the 68,000 megawatts of new gas-fired power plants currently proposed in the United States will be uneconomic compared to new solar and wind projects equipped with storage by 2035. Gas accounts currently for 35% of US power production. If gas-fired power plants become uneconomic to operate, then this will also affect pipelines that move gas . . . . Wood Mackenzie, a consultancy, said in September that 17% of new US solar projects announced this year have corporate PPAs. It said 53% of power contacts signed for solar projects last year were utility purchases outside state renewable portfolio mandates . . . . The winning low bid in an auction of long-term power purchase agreements in August in Portugal was for a 150-megawatt solar project that offered to supply power for €14.76 (US$13.42) a megawatt hour. The previous low record for solar electricity was a bid of US$17.50 a megawatt hour for a solar project this past summer in Brazil.