SACRAMENTO, Ca. – Renewable sources of energy provided close to 100 percent of energy demands in the state of California on Saturday, Desert Sun reported.

Naturally, environmentalists celebrated this achievement, which was first reported as over 100 percent by an online energy tracker.

California Independent System Operator (CAISO), a non-profit organization that tracks the state’s bulk electric power system and electricity generated and transmitted by its utilities, had previously disclosed the state had achieved 101 percent of its power from renewables, the little excess being exported to neighboring states, per Desert Sun’s report.

However, power officials in the state double-checked the data and adjusted it slightly due to battery charging and reserve levels, taking the number to 99.87 percent of the 18,672 megawatts load on Saturday. The number still beats the state’s previous record of 97.58 percent, a spokesperson for CAISO confirmed to Desert Sun. The milestone lasted for a period of 15 minutes, after which renewables contribution dropped to 97 percent.

To read more, click on Interesting Engineering