Daily pv production

anyone else's generation exceeding standard test condition rated power? my 335w (STC) panels are outputting ~10% more today when the sun pops out.. a Spring thing I expect, strong direct sunshine, cool & windy >> cool panels >> efficiency factor increase.

not complaining, great to see it maxed at times.

Something similar for me too yesterday. I was getting DC current values of 5.97kW from our 5.6kWp array. This was translating to 5.64kw being generated as AC power through our 5kW rated inverter.

Crazy day today, it started so brutal and dark then all of sudden BOOM!

Battery got nuked too, 11kwh in less than 2 hours 🤣

OK, so the temp coefficient %/K values are negative with increasing temp but equally it applies in chillier temps, so it's reasonably linear? With the chilly wind today (gusts up to 45km/h) sweeping under the cells, maybe they were significantly under the STC temp of 25°C, but enough for a 10% output boost?

Planning to get PV soon….on a sunny day can you fully charge the car or is about 20% and you would have to charge for a few days in a row to reach 100%…..

So 1kwh i.e. "1 unit" equates to roughly 5Km of driving. So if you charge your car battery with 10Kwhr during the day, that will equate to 50km or so of range that you can drive it. People with large number of panels (say 7Kwp and above) could see 50kWhr/day being produced. After taking away your house load (typically ~15kwhr/day).....you could see yourself adding 150-180Km of range to a car on a very sunny day in June. You naturally won't get that on a cold dark day in December, but large number of panels + EV = winner.

Usual caveats apply i.e. some cars will get slightly more/less than 1kwh=5km, smaller number of panels will reduce the production figures, but to answer your question a fully all electric car could see 40-50% going into it with a big system on a sunny day.

Very true mate. Same deal also with EDDI's now, cheaper to heat the hot water tank at 5am at cheap rate then export the energy that the EDDI would have diverted into the tank later on in the day as you'll get a higher rate for that electricity

Still many of us are still on "deemed export" so we get paid the same for exporting nothing or everything. In this case it's advantageous to try and store what we can to avoid importing a day unit. That will eventually end, but for now....

The battery storage question is a good one. As opposed to "as many panels as you can fit", there's no real clear cut answer on if people should get a battery. I'm a huge proponent of batteries in general, always have been, but with FIT (Feed-in-tarrif) where you get paid for units of electricity that you export to the grid that is surplus to your house, along with the fact that you have an EV already to soak up most/all of your surplus, the return on investment for a house storage battery is questionable.

The answer is very dependant on a lot of factors such as your consumption profile (how much you use, when in the day, the tariff your on, the rates, etc) and it will be specific to every household. In general though I think most homes could do well with a 5Kwhr battery, but that is more of a grand generalization than a recommendation that it will save you money. It may not.

A battery though does allow you to charge at night time rates and then use that during the day to avoid paying "day rate" electricity, and it improves the efficiency of your overall solar production/self-consumption, but it's not a "given" that it'll save you money.

yeah, I'd be of the same opinion. Just need to ensure that your heater left in the "on" position will heat when the power comes back on. Many units, you have to press a button or so to kick it into action, which sort of defeats the WIFI socket. :-(