Renewables: "talking 'bout my generation"

KevinG

Kernel_Sanders wrote: »

What equipment did you use to achieve that and what was your technique?

I used a wet towel wrapped around the end of an extendable cobweb brush thing and stood on a platform ladder (luckily it's a bungalow so not too high).

RoxyK

We're at 110% of PVGIS figures for May and still a few days to go

Interesting my generator meter shows an extra 30 units on top of what my inverter shows. I was right then, inverter is reporting slightly under. I certainly don't mind Can't wait for my 1st FIT payments - although with Good Energy it certainly will be quite the wait.

I've not posted for a while as had a holiday to organise. How will I manage not logging in to my inverter each day?

[Deleted User]

RoxyK wrote: »

We're at 110% of PVGIS figures for May and still a few days to go

Interesting my generator meter shows an extra 30 units on top of what my inverter shows. I was right then, inverter is reporting slightly under. I certainly don't mind Can't wait for my 1st FIT payments - although with Good Energy it certainly will be quite the wait.

I've not posted for a while as had a holiday to organise. How will I manage not logging in to my inverter each day?

Can I ask how many units you have generated in May so far as your system is similar to mine? Cheers

EricMears

25.63Kwh today but still running at 120w so might creep up a little yet.

Today's contribution has us just creeping above the pvgis forecast for May so anything in next 3 days will be a 'bonus'.

However, summer now seems to have gone again and there's little chance of record sunshine for rest of this week

jackieblack

KevinG wrote: »

Yes, my 2kWp SSE facing system has never quite managed to exceed 13kWh. What's the rating of your inverter? I'm fairly sure mine is limiting the output as although it's rated for a maximum of 2kW of panels, its rated maximum output is 1575W and I have only occasionally seen higher than this.

Our system is 2.22kWp and the max output of the inverter is 2kWh. We have had several days of 16kWh generation since installation. (It could be slightly more, between 16 and 17 kWh, but our meter only displays whole kWhs).
We have only had one day of 16kWh generation so far this year, but had several last year!

RoxyK

jeepjunkie wrote: »

Can I ask how many units you have generated in May so far as your system is similar to mine? Cheers

Total the inverter is showing for May is 501 kWh

As a very rough guess I'd estimate the generator meter showing an extra 10 units. I don't bother checking that so often as the inverter keeps its own records.

Is that around your figures?

[Deleted User]

RoxyK wrote: »

Total the inverter is showing for May is 501 kWh

As a very rough guess I'd estimate the generator meter showing an extra 10 units. I don't bother checking that so often as the inverter keeps its own records.

Is that around your figures?

Close of play yesterday I was at 425, PVGIS target is 429, with four days to go so quite happy as most of May has been dire here in Scotland... If the rain stays away a finish of 500+ should be possible.

Cheers

Martyn1981

jackieblack wrote: »

Our system is 2.22kWp and the max output of the inverter is 2kWh. We have had several days of 16kWh generation since installation. (It could be slightly more, between 16 and 17 kWh, but our meter only displays whole kWhs).
We have only had one day of 16kWh generation so far this year, but had several last year!

Jackie, if '30 from 4' (7.5kWh/kWp) is the magic number that seems so hard to beat, then your numbers are right on it.

If you were to engage smug-mode, I suspect you'd get away with it.

Right - 4 weeks down, and what a mess May has been, approx target of 13/day, or 91/week, and I've seen, in weekly order:
60, 94, 101, 140.

I hope June is a little more consistent, I can't stand the excitement!

Mart.

jackieblack

Martyn1981 wrote: »

Jackie, if '30 from 4' (7.5kWh/kWp) is the magic number that seems so hard to beat, then your numbers are right on it.

If you were to engage smug-mode, I suspect you'd get away with it.

Right - 4 weeks down, and what a mess May has been, approx target of 13/day, or 91/week, and I've seen, in weekly order:
60, 94, 101, 140.

I hope June is a little more consistent, I can't stand the excitement!

Mart.

I certainly didn't intend to come across as smug, apologies if it did.
I've always been curious as to whether 16kWh is likely to be the maximum, for us, for any single day. The days that have been '16' days have, so far, all occurred in the month of May.

Last May the weather was great and we generated 138% of our prediction over the whole month, 100kWh more than we have generated so far this May. We only reached our predicted figure at end of the day yesterday so, this month, will only exceed that by what is generated in the next 3 days.

We have had a greater number of 15kWh days, both last year and this year, so that seems like a more 'normal' high, with 16kWh being exceptional.

Reviewing our data from the last 18 months, 'consistent' doesn't appear to be a major feature.
Our generation exceeded prediction by a greater % over the 11-12 winter, than it did during the spectacular 2011 spring/early summer. My year-on-year comparative graph is looking destinctly inconsistent .
Although we are still ahead on total actual vs predicted generation since installation

EricMears

Another seriously flawed weather forecast !

I should have had 5mms of overnight rain (none arrived) and now be seeing 70% cloud cover. Just about got to 2Kw (slightly earlier than I did yesterday when forecast correctly said a cloudfree morning).

Is there a world seaweed shortage or something ?