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It's not about efficiency. It doesn't matter how efficient EVs are over conventional gas engines. We all know EVs are efficient. It's the...
Numbers of chargers are increasing. It is now possible to do well planned trip out of the town on a longish range EV. But winter driving is...
There is an error on the top entry. "Chevrolet Silverado EV: 456 km of 724 range (-14%)" The correct number is more like -37%. That's why EV...
I have not found any installer who would retrofit ground source heat pump in my area. I am sure if I really look further, I can find some...
In you location, assuming Deep South, I don't understand why you would even want heat pump. All you are going to use is for cooling isn't it? Or...
One of biggest concern I have in full conversion to heat pump is the longevity of the system and running cost of maintenance/operation. While it...
I had heat pump installers give us quote several years ago. At that time, just after Ukraine war started, the oil price got high enough (above...
A full month of operation from our PV system produced 653kWh of electricity. That's about 60% of our monthly consumption. And at today's rate...
This type of business model existed for a long time. Razor and blades model - Wikipedia In my case buying new tools bundled with new batteries...
Sorry, I don't own PP any more. But IIRC, the strip I bought ans shown on the comment above was more for the top gap which is much wider... but...
I agree. It would be up to the manufacturer and the installer to horner warranty claims. I wonder if there is any data on success rate on such...
Certainly I will keep record of Daily Light Integral (DLI) and total kWh generated from the system for that day and hand calculate the production...
Yeah, real-world performance is likely to have multiple factors affecting the power output, not just temperature coefficient spec of the panels....
I found the answer here: Most efficient solar panels 2024 - Clean Energy Reviews STC = Standard test conditions - 25°C (77°F) is not the...
Thanks for the data. I had a crush course on temperature effect on solar panel by reading a few articles. I learned my PV panels has temperature...
Thanks. Yes, I found many articles on this topic. I don't know the temperature coefficient spec on my panels, but they are rated 21.8% efficiency....
Is there any documented data on the PV efficiency decrease on hot days? I may have to Google it, but I wonder how much of a "hit" are we talking...
Half of a month since my solar started generating, today was the coldest day this season. Day time high barely hit positive integer (in F). But...
While direction and azimuth are important for capturing max amount of seasonal sun rays, it is largely impractical to try chasing the sun for most...
The article does not say the advantages of vertical system in summer time in Oslo. But winter month advantage under snow is clear. The best system...
