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US solar utility rankings for 2018 led by Californian cos

Source: 2019 Utility solar market snapshot on sepapower.org

June 11 (Renewables Now) - Debt-laden Californian utility Pacific Gas and Electric Company (PG&E) interconnected more residential and non-residential solar power generation capacity in 2018 than any other US utility and also ranked first in the country in terms of total annual solar capacity additions.

The leader for utility-supply capacity in 2018 was Southern California Edison (SCE), while PG&E ranked second in that category, according to the 2019 Utility Solar Market Snapshot by the Smart Electric Power Alliance. The top positions for these two utilities come as no surprise given that California was the undisputed national leader for solar installations last year. The state added over 2.4 GW of new capacity in 2018, or a third of the 7.3 GW of interconnection capacity reported for the US as a whole. Florida ranked second with 971.5 MW.

The US added 1.9 GW of residential, 1.26 GW of non-residential and 4.17 GW of utility-supply capacity last year. The table below contains top five rankings of US utilities based on 2018 capacity additions in the three solar market segments -- residential, non-residential and utility-supply, as presented by the Smart Electric Power Alliance.

Rank Residential Non-residential Utility-supply Total annual 2018 (capacity in MW)
1 PG&E PG&E SCE PG&E (630)
2 SCE SCE PG&E Florida Power & Light (626.8)
3 SDG&E Massachusetts Electric Co Duke Energy Progress SCE (440.7)
4 Arizona Public Service PSE&G SDG&E Duke Energy Progress (436.3)
5 Massachusetts Electric Co Puget Sound Energy LADWP Northern States Power Minnesota (269.4)

SCE and PG&E are also the national leaders in terms of cumulative solar capacity with almost 7.79 GW and 7.65 GW, respectively. The number-three utility here, San Diego Gas & Electric (SDG&E), has just 2.33 GW.

The 2019 Utility Solar Market Snapshot also contains a ranking of US utilities based on solar watts per customer account (W/C). The leader in that category in 2018 was Reedy Creek Improvement District in Florida with 35,936.4 W/C. Georgetown Utility Systems of Texas followed with 6,048.7 W/C.

The full report is available at https://sepapower.org/resource/2019-utility-solar-market-snapshot/

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Browse all articles from Tsvetomira Tsanova

Tsvet has been following the development of the global renewable energy industry for almost nine years. She's got a soft spot for emerging markets.

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