Kaiser Permanente Unveils Renewable Energy Microgrid At Ontario Medical Center In California

The electrical power system can also provide all of the hospital's emergency backup power needs for 10 continuous hours.
Published: April 18, 2025
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Kaiser Permanente (Oakland, Calif.) completed a renewable energy microgrid system at the Kaiser Permanente Ontario Medical Center in Ontario, Calif., according to a news release.

The system provides clean, reliable electrical power for the hospital and adds 2 megawatts of on-site solar generation and 9 megawatt-hours of non-lithium battery storage to the state’s electrical grid.

The microgrid can also serve all of the hospital’s emergency backup power needs for 10 continuous hours.

Kaiser Permanente anticipates the microgrid’s on-site solar power will avoid about 650 metric tons of carbon dioxide emissions by producing roughly 3,300 megawatt-hours per year of zero-emission electricity.

Healthcare Design NL

The hospital system achieved carbon neutral status in 2020 and has pledged to seek net-zero emissions status by 2050.

Read more news about Kaiser Permanente here and more about energy sustainable healthcare design here.

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