Nice little earner

They look after each other, don’t they? What did they use before?

Hawaii has a problem with hot temperatures in public classrooms that is affecting students negatively. The problem was so significant that the Hawaii State Department of Education had to intervene.

They put together a $100 million fund, which has already helped cool down 1,190 classrooms to date, with contracts set for more than 1,300 classrooms, according to The Garden Island.

In order to roll out the program without significantly increasing energy costs for public schools, they partnered with Tesla to pair Powerwalls with solar power to reduce the impact of running the air conditioners in classrooms across the state.

[H/T Chuckles]

6 comments for “Nice little earner

  1. The Blocked Dwarf
    February 25, 2018 at 16:32

    Perhaps one might point out to the Hawaiian Board Of Public Indoctrination that judicious dosage of alcohol and nicotine have been proven to lower body temperature. I’m told opening a window is quite effective too.

    • February 25, 2018 at 17:07

      Opening a window? No sanity allowed here please.

  2. Mark in Mayenne
    February 25, 2018 at 17:51

    Something I don’t understand, perhaps someone can explain. Buildings get hot when it’s sunny. Solar panels make electricity when it’s sunny. Batteries store electricity for when there’s no sun. So why the batteries?

    • Chuckles
      February 25, 2018 at 18:22

      Virtue Signalling.

      • Mark in Mayenne
        February 25, 2018 at 18:44

        I thought maybe to stabilise the voltage

        • Chuckles
          February 25, 2018 at 19:17

          Since the air conditioning uses AC which switches polarity 50 or 60 times a second, that would sub-optimal… 🙂

          I’d guess that large battery packs are usually used where you want to store the generated energy to use at another time, but here it’s perhaps because the solar panels generate DC, which they then use to charge the batteries, and the inverters which generate the AC for the air-cons are run off the battery feed?

          With the inevitable losses in both processes.

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