Renewables: "talking 'bout my generation"

KevinG

Not too bad, sunny intervals and 7.19kWh but, as I keep saying, forecast for the next few days is rubbish.

EricMears

KevinG wrote: »

as I keep saying, forecast for the next few days is rubbish.

Cheer up, basic problem is that forecasters are rubbish !:j

Who knows, tomorrow could still be a record day ?:D

Oscargrouch

KevinG wrote: »

Not too bad, sunny intervals and 7.19kWh but, as I keep saying, forecast for the next few days is rubbish.

They are spot on at the moment; being as at 15:13 my monitor is showing 1W being ploughed into the Grid..:mad::rotfl:

Fruit_and_Nut_Case

Just caught my SolarEdge SE4000 registering >4000KW for a couple of minutes, peaking at 4096KW. I wish it would do that more often.

EricMears

We started generating Tuesday 16th. August 2011 at 13:45

2012 is of course a leap year so I’m working things out today – 365 days later. I guess if I wanted to be really accurate, I ought to add on a quarter of whatever we generate between now and same time tomorrow (but I won’t bother).

TGM reading at 13:45 today was 3550 kWh. (which compares very well with the inverter reading of 3544. I can live with a 0.17% error ).

Total FIT claims will be £1633.69 (that includes the effect of the April 1st price rise) which represents a 13.07% ROI


Imported electricity savings are a bit harder to estimate. Compared with July 2009-10 (last year for which comparable figures are available), we appear to have saved 3249 daytime units (say £325) and 2125 night ones (say £105) - a total of £430.

Probably not true to claim all of that as SP contribution. I have of course become more aware of power usage since then and we've also replaced an old fridge/freezer with a modern (& hopefully more efficient) one, but if it were true, ROI increases to 16.5%

shafeeq

Hi

Not much too report from here today 2.91kwh....

KevinG

3.3kWh, a new low for August.

Oscargrouch

:rotfl:3.8 kWh :rotfl::mad:

EricMears

Forecast was bad; actuality not quite so bad. Yesterday they were telling me dull & cloudy all day with frequent heavy rain. First thing this morning that changed to allow possibility of some sunny intervals.

Corrected forecast was nearly right. Bright start, some cloudy intervals but mainly sunny till 2pm then some very heavy rain (approx 1.5") clearing up but remaining dul later.

Total generation for day 7.29 kWh

jkpaul

EricMears wrote: »

Imported electricity savings are a bit harder to estimate. Compared with July 2009-10 (last year for which comparable figures are available), we appear to have saved 3249 daytime units (say £325) and 2125 night ones (say £105) - a total of £430.

Probably not true to claim all of that as SP contribution. I have of course become more aware of power usage since then and we've also replaced an old fridge/freezer with a modern (& hopefully more efficient) one, but if it were true, ROI increases to 16.5%

Thanks Eric, that's an interesting summary. In order to compare it to our situation it would be useful to know what your average annual usage in terms of units was pre-Solar PV ... I ask because given the problems we've had with a dodgy import meter I'm very interested in what electricity usage / import savings people are seeing.

Currently I've been offered a nominal credit of 6 units per day (Feb - July) for the fact we've been overcharged due to the exported electricity being added onto our import readings. :mad:

I've rejected this, asking for them to interrogate the meter and get the actual figures from it. :wall: