Daily pv production

lau1247 · 31-05-2024 05:48PM

793 kwh so far for May with a few hours left (Here's hoping it hit 800 kwh). Works out averaging 25.5 kwh per day.

Compared to April's 678 kwh, it is working well.

bullit_dodger · 31-05-2024 06:42PM

Nahh, nothing like promised. I'll get 30+ kWh, but we were supposedly getting mid 40's kWh (on my 6.5Kwp)

Still at, for the moment, €0.24/kwh that's €7 or so to put in the piggy bank - but yeah, disappointing as I was hoping to see record breaking numbers. Met Eireann you lied to us :-)

ColemanY2K · 31-05-2024 08:36PM

Solid

P.S. that % is bollocks. Should read 96% green.

snowcat · 31-05-2024 08:42PM

52. 8kw system. Dragged May out of the gutter.

31-05-2024 09:11PM

Not too shabby.

Screenshot_20240531_211043_Home Assistant.jpg

deravarra · 31-05-2024 09:37PM

May 2024: 465 KWh generated

May 2023: 610 KWh generated

Not great. Hoping for a far better June, July and August than last year!

unkel · 01-06-2024 12:40AM

Finally got the ton. Production was under 80kWh. Net profit for the day €25.

deravarra · 01-06-2024 09:35AM

https://www.boards.ie/discussion/comment/122208939#Comment_122208939

Do you ever get a bill? or are you always in credit?

unkel · 01-06-2024 10:21AM

https://www.boards.ie/discussion/comment/122209316#Comment_122209316

I only started with Pinergy in September and they use a level pay system, so paid them €330 per month for the first 2 months. But they have refunded all of that and the rest. Over the year they pay me, roughly as much as my gas bill costs. So my total bill for the year for heating my house, heating my water, driving 2-3 EVs, all my electricity and a bit of crypto mining is about…….zero 😁

Family of 5 with 3 teenage / young adult children living in a modest 3 bed semi in a housing estate in Lucan

deravarra · 01-06-2024 10:28AM

https://www.boards.ie/discussion/comment/122209426#Comment_122209426

What size system in total?

Fair play for the net zero costs! You must have the house almost airtight

unkel · 01-06-2024 11:07AM

https://www.boards.ie/discussion/comment/122209446#Comment_122209446

Not at all, the house is poorly insulated, I don't even have cavity walls. So there is very little I could do apart from decent attic insulation and a new front door (I can't afford new windows, an air to water heat pump system or external wall insulation). It was cheaply built in early 2000. A typical corners cut cheap starter home.

I do have PV panels everywhere though and a very large home battery. The reason my bill is so good is that I can charge up my home battery with 5c / kWh and immediately sell back to the grid for 25c / kWh. All the other electricity I use (for my cars and for the house) is also bought at this super cheap rate and all my PV is exported to the grid

curioustony · 01-06-2024 11:47AM

This strategy is all about the battery. Even without the ability to dump battery to the grid, and a large PV array, getting above 90% at the cheap rate is doable. Using the standard load profile, and an annual usage of 4200 kWh

No battery is 10.7% cheap rate. 10.9kWh with scheduled charging gets to 79.7%, and 21.8 gets to 96.7% cheap electricity

Not zero, but if you are prepared to gamble on the longevity of big differentials in time of use prices, this obviously works.

Add the other bits, and you are going to be able to shift strategy based on the prevailing market. @unkel is dreaming of flexible tariffs.

Wish I had the cash to follow suit, or the guts to go diy on the battery.

unkel · 01-06-2024 12:08PM

@curioustony - have a look at the DIY battery build thread on this forum. People with 2 left hands have built batteries because of it and with the help from forum members!

And yes, flexible tariffs would make me serious money, I am all setup for it already. Sure I am dreaming of them, but they are an inevitability, have been there for years in other markets. Ireland is a good bit behind, as usual.

curioustony · 01-06-2024 04:55PM

Cracking day to start June off on the right track

@unkel I do follow those DIY battery threads here. Definitely easier now than it was 2 years ago. But it gets a bit more complicated with an existing install, that I'm very happy with.

I reckon a DIY battery with A2A HP would put a big dent in my kerosene spend, but that could not be grid tied. Unless I swapped out...

unkel · 01-06-2024 05:06PM

https://www.boards.ie/discussion/comment/122210421#Comment_122210421

You'd want it grid tied. I see that you have a 10.9kWh battery in your sig, you probably invested heavily into it. Wouldn't make a lot of financial sense to sell that now at a big loss and then build your own battery.

You don't have a lot of panels though, I presume a detached home in Roscommon? I would concentrate on getting more panels first, presuming you have a smart meter and get paid for exporting

curioustony · 01-06-2024 05:43PM

@unkel exactly. Anything extra I add in summer would go straight to FIT, and in winter simply reduce my bill. Repayment is related directly to FIT.

The is space there to nearly double what I have, and the inverter can take it. But until I need to increase my electricity consumption, I cannot justify it. Maybe when an EV replaces the diesel that owes me nothing and keeps plodding along

Bakka · 01-06-2024 05:54PM

1067 kwh for May. Here's hoping June is better. 9.1 kw ground mount system

unkel · 01-06-2024 07:17PM

https://www.boards.ie/discussion/comment/122210591#Comment_122210591

You don't get extra panels for self use. Or for diverting to your hot water, or for charging your EVs. You get them purely for the feed in tariff!

To give you an example. A 400W panel at trade prices costs €40 + VAT. In Ireland, facing south, it makes €100 per year in FIT. Obviously there are the costs of installing it. But you get the idea about pay back time, it is insanely good in Ireland. Get those extra panels ASAP 😀

ColemanY2K · 01-06-2024 08:59PM

June off to a cracking start. Sunny south east living up to it's name today.

01-06-2024 10:03PM

Great start to June.

Screenshot_20240601_220153_Home Assistant.jpg

01-06-2024 10:04PM

https://www.boards.ie/discussion/comment/122210907#Comment_122210907

Where are you getting 400w panels for 40 quid?

unkel · 01-06-2024 10:08PM

https://www.boards.ie/discussion/comment/122211637#Comment_122211637

Trade price from one of the biggest Irish wholesalers

graememk · 01-06-2024 10:15PM

https://www.boards.ie/discussion/comment/122211658#Comment_122211658

Well 365-370w.. + vat too.

01-06-2024 10:38PM

It's incredible how much they've dropped in price.

graememk · 01-06-2024 10:46PM

https://www.boards.ie/discussion/comment/122211754#Comment_122211754

It is the clearance section, but plenty of availability

unkel · 01-06-2024 10:52PM

https://www.boards.ie/discussion/comment/122211754#Comment_122211754

As Tony Seba predicted a few years ago (and of course he would turn out to be right again), solar panels are now cheaper for use as structural building material than plywood. Think using it for fences, to build sheds, etc.