Summer solstice sets solar record in California
On June 21, the longest day of the year in the Northern Hemisphere, CAISO reported a total solar electricity generation record of 112 GWh.
First, you must be California – the 31st state to join the United States that just so happens to be the league leader in total solar power deployed by a long shot. Then, you mix in one part ‘no clouds’ over the entirety of the southwestern United States.
And lastly you toss in a healthy amount of June 21, the summer solstice in the northern hemisphere on earth, offering up the most amount of daylight for the year!
Per the California Independent System Operator (CAISO), and per tweets supplied by Joe Deely, on Thursday June 21st, large-scale solar power (PV and CSP/solar thermal) set a generation record for the day of 112,356 MWh. This is equivalent to 16% of all electricity consumed during the day.
This record is seperate from two other records – 1. instantaneous solar generation record – 10,539 MW at 1:40 PM on April 27, 2018 and 2. peak percentage of demand served by solar – 49.95% at 12:58 PM on March 4, 2018.
For all three of these records, the numbers do not actually do justice to the full output of solar in the state, as CAISO does not have any visibility into solar power located at homes and businesses located behind a customer’s meter….