Supporting Renewables

Our facilities are there when you need them – and can be turned off when you don’t

A massive transition is taking place on the U.S. electric grid – renewables are rapidly increasing their market share and will soon become the core of the nation’s power supply. But there are still gaps in renewable generation – called "intermittency" – when solar and wind cannot supply all of the electricity needed by consumers - that’s where we come in. SWG’s gas-fired power plants balance the variability of solar and wind, ramping up when renewables cannot meet consumer demand on their own, and ramping down when renewables are able to take over.

This chart showing the typical daily dispatch of our Pio Pico plant shows that Southwest Generation makes it possible to use renewables when they’re available and fill the gap when they’re not – without compromising the reliability of electrical power


The electricity generation mix continues to experience a rapid rate of change, with renewables the fastest-growing source of electricity generation through 2050 because of continuing declines in the capital costs for solar and wind that are supported by federal tax credits and higher state-level renewables targets. With slow load growth and increasing electricity production from renewables, U.S. coal-fired and nuclear electricity generation declines; most of the decline occurs by the mid-2020s.

Annual Energy Outlook 2020 | EIA