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Rising solar generation in California coincides with negative wholesale electricity prices

(Fri, 07 Apr 2017) On March 11, utility-scale solar generation in the territory of the California Independent System Operator (CAISO) accounted for almost 40% of net grid power produced during the hours of 11:00 a.m. to 2:00 p.m. This is the first time CAISO has achieved these levels, reflecting an almost 50% growth in utility-scale solar photovoltaic installed capacity in 2016.

U.S. households’ heating equipment choices are diverse and vary by climate region

(Thu, 06 Apr 2017) Data from the 2015 Residential Energy Consumption Survey (RECS) show that the majority of American households use one of three types of equipment as their main source of heat during the winter: natural gas furnaces, electric furnaces, or electric heat pumps. The range of equipment and fuels, however, varies across and within U.S. climate regions

U.S. natural gas storage capacity increased slightly in 2016

(Tue, 04 Apr 2017) For the past three years, underground natural gas storage capacity in the Lower 48 states has changed by relatively small increments compared to the changes in 2012 and 2013. No new storage facilities have entered service since 2013, so recent annual changes in both storage design capacities and demonstrated maximum working gas volumes reflect the aggregate effect of small changes at existing facilities

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