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Willow Creek Observatory Willow Creek Observatory

      Observatory Log

      Neat telescopes on equatorial mounts.

      • Pine River

      Lithium solar energy storage

      June 13, 2020

      We’re officially running the observatory completely on solar energy now.

      • 4 x 100w solar panels with 40 amp MPPT charge controller
      • 24 volt lithium-ion battery-wall system (560 18650’s in 7s configuration)
      • 3000 watt (6000 peak) inverter

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      Updated: June 13, 2020

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