California’s interconnection queue included 29 GW of proposed solar-plus-storage plants as of year-end 2019, while Western utilities’ queues had another 33 GW, as shown with yellow bars below (CAISO and West non-ISO).
Yet planned gas units totaled only 0.2 GW in California’s queue and 4 GW in Western utilities’ queues.
The data are from a Lawrence Berkeley National Laboratory report and data visualization tool, both focusing on utility-scale hybrid generators, such as solar-plus-storage.
While the majority of plants proposed in the interconnection queues “are not subsequently built,” says the report, a Western trend favoring solar-plus-storage over gas units seems clear.
Solar plus 4-hour storage has been found to have a 99.8% capacity value in California, easily matching gas.
The Midwest shows signs of a similar trend, as the region’s interconnection queues (ERCOT, MISO and SPP above) had 21 GW of proposed solar-plus-storage plants at year-end 2019, well above the 13 GW of proposed gas units.
Gas is still favored in the East, as Eastern queues had 59 GW of proposed gas units at year-end 2019 (shown in blue below, counting Southeast non-ISO, PJM, NYISO, and ISO-NE), and only 13 GW of proposed solar-plus-storage plants.
Overall, 28% of solar projects in the interconnection queues include storage.
This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: firstname.lastname@example.org.
By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.
Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.
You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.
Further information on data privacy can be found in our Data Protection Policy.