• HTTP_404_NotFound@lemmyonline.com
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    10 months ago

    If the ROI => 25 years, then it’s not worth it- because the hardware and equipment is considered deprecated at that point.

    If it lasts 30 years, sure, its making good use of itself. But- everything is rated between 15-25 years. As such, after that period, it’s considered end of life, and no longer supported.

    Now- I will note, it is not worth it for the “Rate I currently pay”, which is 0.08c/kwh. If next year, my electricity rates tripled, it would vastly reduce the amount of time until this solution reached ROI. And- I am betting that electricity does not get cheaper in the future, otherwise I would have not have pulled the trigger on a 50,000$ project, where the math told me it wasn’t the best idea.

    Also, if you really want to see everything quantified- I plan on publishing all of the math, and numbers at the one year mark… which will be around march. -> https://static.xtremeownage.com/pages/Projects/Solar-Project/

    • abhibeckert@beehaw.org
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      10 months ago

      for the “Rate I currently pay”, which is 0.08c/kwh

      How did you get that rate? We pay 33 cents, and it was 24 cents just a few months ago… wouldn’t be surprised if it goes up again next year and the year after since even 33 cents is government subsidised (so - there’s no cheaper option available).

      otherwise I would have not have pulled the trigger on a 50,000$ project

      Ooof. Why’d you do that? We simply put (a bit over) 5kW of panels on the roof, and a good 5kW inverter. One day of sun generates about as much power as we use in a week, and even if it’s overcast we still come out ahead.

      We’re basically only paying for overnight power and pretty easy to keep that to a minimum (with good insulation, efficient overnight appliances, avoiding unnecessary overnight power consumption - such as putting the beer fridge and hot water heater on a timer).