How to Install Solar Panels – This Old House



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Capturing and converting the sun’s energy with This Old House energy expert Ross Trethewey.

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32 thoughts on “How to Install Solar Panels – This Old House

  1. Get ready to lay out the $$ when it comes time to replace the roof, all that hardware will have to be taken down first. I bet some of those roofs leak after a while, too, which could lead to vastly more $$$. I'm not against solar, but am leery about roof installs even though that's "the way to do it."

  2. Did you see the breaker? 20 amps. All of that expense for a measly 20 amp circuit. I have a 20 amp circuit just to run the whirlpool motor in my Jacuzzi bathtub.

  3. The reason old solar systems used series was to drive up the voltage. New solar panels dont have this issue. Each panel is capable of producing 12-24 volts. You're putting multiple inverters in for no reason. Run each panel parallel into a single inverter and save lots of up front cost.

  4. I have no in-depth knowledge on this, but i guess that all those separate micro inverters come with a downside. Each individual inverter has to measure the phase to know how to sync on it, and stay in sync with the phase over time. Doing that once at 1 big device is already quite applause worthy. I cannot imagine doing that same job at 20 different places in one system will do any good.

  5. This book [link here >>>https://t.co/z2HakYxvSR ] got me thru the design and installation of a complete off-grid system for my lake cottage. The process of site evaluation, system component selection, wiring, etc. is complex, but with a lot of study and this book, I ended up very happy with the results. Everything you need to know is here. I recommend it for anyone who is starting with little solar panel knowledge and wants to end up with a whole house system.

  6. Looks like the panels will way outlast that roof. id do a metal roof first, then the panels. then my grandchildren will finally see the return when they inherit the home…..which theyll just wholesale for quick buck and bmw. hahaha.

  7. Solar systems are a waste of money. You still pay. Just on your PAY TO line, it's not "electric company" but "solar company," and a "bank" for the interest.

    Simpler answer: Reduce consumption. LED Bulbs, new appliances, timers, unplug things when not using them (plug strips- perhaps wifi controlled), etc.

    Smaller investment. Faster return.

  8. Typical "This Old House" application… NOT something the everyday DIY-er can do. They find homeowners with LOTS of money and find the MOST expensive equipment to install, for show of course, leaving about 98% of homeowners out in the cold.

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