Domestic solar PV quotes 2018

Same here, yesterday was an average day, to the point I was expecting lower levels.

Have had much higher levels than that over the last few weeks, up around mid thirties

In fact, since the 1st April, I have had only ten days where my production has dipped below 20kwh, and even at that we are talking about 16-17kwh. 2 of those ten days were due to loss of data rather than actual production values.

rolion wrote: »

That production will have been generated in one of the best day of this period.

Nope, you are wrong, it was an not an exceptional day, based on weather and amount of cloud cover, and indeed generation.

rolion wrote: »

I will really love to see a graph or report that shows production across 30 days / a month.

Here you go




Clearly shows that the 28kwh I produced was not exceptional as you claimed it would have been.

rolion wrote: »

Apart of the lovely 28Kwh produced i guarantee you have days along with less than 5KWh figures...thats when you need and thats when a good quality PV panels harvest the last photon from the cloudy skies... so giving the peak of production for a day and express how good the system works in raltino to Mother nature i will say is not the right approach to this.

Wrong again, I have not had any 5kwh days since the system was brought live end of March. My lowest production day was actually the 1st of June at just 13kwh! I am showing 2 days on my stats with the production levels below 5kwh, but those days were due to an issue with my logger.

i Will have to wait a good few more months before my production levels drop the 5kwh figures you mention. I would be dissapointed to see those kind of levels on my system at this time of year, perhaps your system needs checking ?

It was partially the logic in going for 6kwp, to squeeze that bit more out of the system during the low production periods, even if I do end out over producing during peak periods.

rolion wrote: »

Not to mention the spikes of the day,over hours of that day as is not continuous curved shape but rather spikes and you will need to get your consumption alligned to the generation.

Well, at 28kwh produced, and just 3kwh imported, thats a pretty good allignment, I am quite happy with.

rolion wrote: »

So,if the green line is the generated PV electricity and the red line are your appliances eating KWh from inverter and/or from grid...BIG q is how you align your living over a day to match that curve !?

Easy:-

a) Battery system
b) EDDI hot water diverter which manages the excess very well
c) Managing use time of appliances
d) Spreading the load
e) Time delay/start delay on appliances
f) Smart appliances, Smart Lighting (remote access for activation etc).

My usage graph for the 3rd when the 28kwh was produced is just below, you can see the excess being nicely soaked up by the battery and the eddi for a good portion of the day.





Another graph from the previous day showing usage being tracked near perfectly against generation.