Daily pv production

unkel

September was the warmest September ever measured globally. And from my own not so scientific study of my grape vine. It was in a terribly delayed state, looking like it wasn't going beyond small green immature fruits even by the end of August. Proof of a very poor summer. But by now the fruits have matured. I was also swimming in the sea (in my swim boxers) a few days ago. Pretty warm for mid October

I like your optimism, I guess it is normal for someone with a brand new install. But having had mine for a good few years now, I'm telling you the last 6 weeks were exceptional for this time of year

graememk

Yep harvest was slow this year, and slow to ripen. last 2 weeks in sept was fantastic weather.

Totally agree with the temps Its still quite warm, Normally id be in overalls by now. but the sea is always at its warmest now. March/april is the coldest!

Unkel, do you have much year on year data gathered up, or has things changed too much with your setup to even compare?

garo

My Sept 2019 production was 420 kWh and Sept 2020 357kWh. So I disagree that this has been an exceptional September. Expected production was 335 so 6% above expected in Dublin is not overly impressive.

TheWonderLlama

just as a little exercise I did for myself,

my pv array has been in just over a year. 4.2kw with one battery.
In that time it generated 3.6Mwh
Even with that, the house has consumed 3,350 units costing roughly €680.

Still some fettling to do on the system (upgrade battery, few more panels) and some training to do with the timing of appliance use etc within the house but that's not too bad.
The added saving was in one fill of oil for the year costing about €500 on top of this as we have the immersion diverter in place as well. we used to have to hit the boiler for hot water regularly, not any more.

Just my experience of installing panels and what they can save you.

slave1

Not just what they saved you, you also helped reduce fossil consumption so that has helped me too!

DrPhilG

Odd few days.

Friday 8.7kWh
Yesterday - 2.3kWh
Today 11.2kWh

graememk

DrPhilG wrote: »

Odd few days.

Friday 8.7kWh
Yesterday - 2.3kWh
Today 11.2kWh

Fri/sat/sun
13.4/1.7/7.6

Yesterday was a v dark with heavy cloud. im tracking a few kwhs behind you, with less panels and a single aspect.

In overall similar numbers, was quite dark until about 1ish when the clouds cleared with me today.

irishchris

DrPhilG wrote: »

Odd few days.

Friday 8.7kWh
Yesterday - 2.3kWh
Today 11.2kWh

Fared better than you on Friday and Saturday but today was a day to forget here weatherwise as all the sun must have been in Donegal today :-)

Friday: 10 kwh
Saturday: 3.2 kwh
Sunday: 4.5 kwh

davpower

10.4kwh Friday
4kwh Saturday
2.2Kwh Sunday

all from 5kw system facing south in Cork, not a great weekend! Generated over 53kwh last weekend.

Winterman1234

DrPhilG wrote: »

Odd few days.

Friday 8.7kWh
Yesterday - 2.3kWh
Today 11.2kWh

2.48kw array, single South East facing, south donegal

Friday 2.9kWh
Yesterday 5.6kWh
Today 5.1kWh

idc

5.6 kWh Friday 16th Oct
5.0 kWh Saturday 17th Oct
7.9 kWh Sunday 18th Oct

Location: North Dublin
KWP: 4.65
Split string: 2.17 Kwp (SE) 2.48Kwp (SW)

drdidlittle

8.5 kWh Friday
3.7 kWh Saturday
5.6 kWh Sunday

Today is looking like setting new record. 10.45 and I've peaked at 90W so far.
Sunday was a frustrating day. Fog just didn't clear around here. One of those days

slave1

Today will be interesting, so gloomy here, long time since I've had to put on all the lights as just way too dark indoors....

DeclanD54

5.5kwh friday
6.8kwh Saturday
9.2kwh sunday. Full sun until midday

DrPhilG

Yeah today is going to be an absolute shocker.

Peaked at 190w earlier, no idea how. Been sitting around 60w most of the day. 0.2kWh in the bank this far, lol.

irishchris

Sitting at 90w all day and looking at forecast not going to improve today :-(

DrPhilG

Finished up on 1.2kWh lol

idc

1.6 kWh Monday 19th Oct
Location: North Dublin
kWP: 4.65
Split string: 2.17 kWp (SE) 2.48kWp (SW)

drdidlittle

drdidlittle wrote: »

8.5 kWh Friday
3.7 kWh Saturday
5.6 kWh Sunday

Today is looking like setting new record. 10.45 and I've peaked at 90W so far.
Sunday was a frustrating day. Fog just didn't clear around here. One of those days

Finished up on 1.4kWh

garo

idc wrote: »

1.6 kWh Monday 19th Oct
Location: North Dublin
kWP: 4.65
Split string: 2.17 kWp (SE) 2.48kWp (SW)

1.4kWh for me yesterday. Never went above 550W and stayed below 200W except for that 10 mins. 2.4/2.4 E/W split.

Mickeroo

Only managed 0.3kwh for all of yesterday. Today should be better but not by much I reckon.

garo

Brightened up here in Dublin now. I have already exceeded yesterday's production.

DrPhilG

This morning was brighter in Donegal, but it went to crap again by half 10.

Surpassed yesterday's miserable 1.2Kwh but I'll be lucky to break 2kWh today I suspect.

Forecast says solid rain for the next 2 days too.

DrPhilG

Last 4 days:
17th - 2.3
18th - 11.2
19th - 1.2
20th - 3.0

Predicted total for October was 290kWh. On 174Kwh so far so nearly on track, but given the deteriorating weather I'm pretty sure I'll not hit 100% of the prediction for the month. Shouldn't be too bad overall. If I get 230kWh I'll be happy enough.

First full post-solar electric bill (and last one from SSE before Energia take over again) is due in 2 days.

DrPhilG

3.5kWh again yesterday. But sun on the forecast from today til Sunday.

richie123

I'm gonna launch a grenade and I mean no disrespect.
Why do people buy pv systems that produce very little power at the most demanding time of the year.

CoBo55

richie123 wrote: »

I'm gonna launch a grenade and I mean no disrespect.
Why do people buy pv systems that produce very little power at the most demanding time of the year.

Thinking the very same myself. Loads of juice and nothing to use it during the summer. Barely enough to power a sky box from October to March.

richie123

CoBo55 wrote: »

Thinking the very same myself. Loads of juice and nothing to use it during the summer. Barely enough to power a sky box from October to March.

I'm pro pv and wind turbine.
But no point fooling yourself either
I mean if u we're buying a car and the sales men told you it will barely work for 3 months of the year ...you wouldnt buy it.

wexfordman2

richie123 wrote: »

I'm pro pv and wind turbine.
But no point fooling yourself either
I mean if u we're buying a car and the sales men told you it will barely work for 3 months of the year ...you wouldnt buy it.

Daft comparison, if you buy a car, you buy it knowing that you need it 12 months if the year, the same does not apply to solar pv, you never buy it to replace your dependence on grid power in it's entirety, that would be daft.

The same argument could be said for wind, why install.wind, when you can't rely on it when you need it most.

By the way, my pv production so far for the month of October is 270kwh, nothing to sneeze at by any means.

physioman

richie123 wrote: »

I'm pro pv and wind turbine.
But no point fooling yourself either
I mean if u we're buying a car and the sales men told you it will barely work for 3 months of the year ...you wouldnt buy it.

Have to agree on the pv aspect. It's not really suitable for ireland. A wind turbine would be more suitable for where I'm located but the cost and planning restrictions dont make it financially viable