That massive spike of 50c/kWh at the left looks tiny compared to today even though that’s already insanely expensive

    • Linssiili@sopuli.xyz
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      10 months ago

      Well, here (in middle of finland) the sun set at 14:30, so there wasn’t all that much solar energy available.

      Also heat pumps are always at least as efficient as straight electric heating.

      • nilloc@discuss.tchncs.de
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        10 months ago

        It think above -20C or so, cold weather heat pumps are still way more efficient than resistive electric heating.

        Good R-factor insulation is probably the most important upgrade in OP’s case. There are people where I live in the Northeast who heat their homes almost exclusively with the waste heat from cooking, electronics or old incandescent lighting. They have like R-30+ homes and really neat ventilation designs for cooling in the summer too.

        I had plans to build a tiny home with Vacuum insulated panels and a small marine stove for heat, until we had a child and plans changed.

        Now I’m looking at a solar battery setup with geothermal heat pump that will probably cost nearly what the whole tiny home was gonna be.

    • DanglingFury@lemmy.world
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      10 months ago

      Solar is quite poor in Northern winters. Wind + solar + heat would be a better bet, but the battery required to heat your house for more than a day with low winds would be prohibitively expensive unless you added geothermal to the mix like a geothermal heatpump which is also very expensive. Betweem the gear, battery, geothermal, all installed your probably in the 80k$ range or more. A wood stove would be the best bet

      • 018118055@sopuli.xyz
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        10 months ago

        Finland has about 5.2GW of wind capacity vs 4.3 nuclear. If it’s a windy day the spot price will usually be low.

        • DanglingFury@lemmy.world
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          10 months ago

          Good point, for aome reason i was thinking more off-grid than load balancing economics. The battery would probably help lower power by filling when power is cheap and supplying when the rates spike throughout the day