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The most reasonable application for the solar roof tiles is when a roof is beeing built or renewed. I wouldn't expect them to be cost efficient when replacing a
by _ph_ 7y ago
The most reasonable application for the solar roof tiles is when a roof is beeing built or renewed. I wouldn't expect them to be cost efficient when replacing an existing roof in good shape. As with electric cars, you buy them, when you would buy a new car anyway.
And of course, they are great whereever people are hesitant to put solar panels onto their roof for esthetic reasons. What else is keeping people away from putting solar onto their roofs?
- hef19898 7y agoThe answer to your last question still is, unfortunately, costs and return-of-investment. When we built our house a couple of years back the ROI would have been around the 10 year mark, not too great at that particular moment. The ROI can either be improved by subsidies or if you factor in EVs. In the latter case, assuming there is enough cash available, the investment improves a lot.