Solar Energy and saving money

I ended up going with the middle quote - 22 panels, Sigenergy hybrid inverter and Sigenergy 5kw battery - all in was 12k. Is expected to generate about 7k units a year. It was only installed last Friday but seems great so far - weather has been cloudy so solar hasn't been hitting anywhere near peak but I am still at about 30% of my prior usage from the grid.

The Sigenery system is really user friendly and the AI mode ensures that it operates at maximum efficiency. I just plug details of the tariff I am on into the app and it utilizes the battery/solar accordingly. Realtime data also - refreshes every 30 seconds. I have the option to plug additional batteries onto the existing structure at any point if I wish.

Early days but so far so good.
Do you have the model number of the inverter to hand?
 
Bad month so far, but I did the sums on my returns since I had it installed in March and I'm more than happy. Nov-Jan are always going to be very low anyway.

With generation poor at this time of year, I've set my battery to charge up during the cheap night hours we have on our EV Smart plan, so some of my daily usage is at 7c a unit. I also set it to charge for a couple of hours before the expensive peak rate kicks in between 5pm and 7pm so I never have to buy any units at peak rate (which I think is around 45c a unit)

My total electricity bill for the year is likely to be around €150 (admittedly some of that is down to the govt credits that I would have received either way).
 
Just a quick follow up. The net cost of my electricity over the last 2 months has been the princely sum of €45, as compared to my previous average of €110 per month.
 
Agreed, Solar is the best thing I ever bought.
Just wish I had of put more panels up, when I was doing it

I wish I had more room, to put up more panels!

For anyone who isn't aware, the actual solar panels, are typically cheap enough, averaging €300 - €400 depending on make and model etc.

In fact, I'm starting to consider building a small extension to the back of our house, and top of my concerns isn't the internal floor space, amount of natural light, but how many more panels I can install, once it's built :D:D:D
 
I wish I had more room, to put up more panels!

For anyone who isn't aware, the actual solar panels, are typically cheap enough, averaging €300 - €400 depending on make and model etc.

In fact, I'm starting to consider building a small extension to the back of our house, and top of my concerns isn't the internal floor space, amount of natural light, but how many more panels I can install, once it's built :D:D:D
Aren't you capped by the size of the inverter?
 
Aren't you capped by the size of the inverter?
Not really. If you put up say 10kW of panels with a 5kW inverter, yes in the middle of a summers day the maximum you can generate is 5kW, but outside of that peak time you’ll be generating double what you could have with half the panels. Given that the vast majority of the time you won’t be getting full output from your panels it makes a lot of sense to over-provision them and let the inverter ‘clip’ the power in those few summer hours where you are producing more than it can use.
 
Some interesting and informative Youtube videos regarding PV solar can be found at this link:-

https://www.youtube.com/@GaryDoesSolar *

Welcome to my channel, Gary Does Solar. My mission is simple - to empower individuals with a deeper understanding of solar energy and related technologies, enabling them to actively contribute to a sustainable future powered by renewables.

He also offers an interesting ready reckoner: https://garydoessolar.com/utilities/dailymodellingutility/ which I am currently testing out.


* This link appeared briefly on this thread yesterday, and then mysteriously disappeared!
 
Has anybody any thoughts on Sig en Energy controller ? Got a quote from a supplier . 22 Panels and a Sig en 5kw 5in1 controller. Cost, exclusive of grant is just under 10k
 
The recent spell of cloudy high pressure that has affected Ireland for the past fortnight has meant that my PV panels have generated a grand total of 1.6 units over the past 12 days! Total revenue raised has been 30cent!
If this continues, then the break-even point for my PV solar installation will be in about 73 years time, which is a bit longer than I anticipated!

(I read on the UK Netweather site that Ireland has experienced a total of 1 hour's sunshine over the past 11 days!)

A brief follow up to my earlier post:

Total PV energy generated in November 2023: 106 kWh

Total PV energy generated in November 2024: 54 kWh :eek:

Hopefully the sun will return next month.
 
For what it is worth Marsupial I had something similar with a 4kw East/West system for November.

Total generated in November 2023: 89 kWh

Total generated for November 2024: 68 kWh

Slim pickings…

g
 
Everyone had a bad November 2024 - but, November was never expected to produce much, and it's not known for its clear, bright, long days, so why worry about it?

Investing in Solar is a long term investment that generates solid pong term returns, it's like buying equities, so forget the day trader type of mindset ;)
 
I recently looked into solar. In our case it's the equivalent of buying 6 or 7 years' worth of electricity up front. I'm not sold yet on the idea, as I'm not sure enough we'll be still living where we are long enough to recoup that cost.
 
Itll add to value of your house though?
In our case, I can't see it moving the dial much. Our home is already A rated, plus given the rate of improvement in panels year-on-year, like all other technology, it's out of date nearly as soon as you've got it.
 
Everyone had a bad November 2024 - but, November was never expected to produce much, and it's not known for its clear, bright, long days, so why worry about it?

Investing in Solar is a long term investment that generates solid pong term returns, it's like buying equities, so forget the day trader type of mindset ;)

Which is why I invested. But I regard a decline in monthly production of almost 50% as being statistically noteworthy, whether it occurs in June or in November!
 
So says the sales pitch....but does it really?

Yes, I think it does - regardless of the BER rating likely improvement, the homeowner will also save electricity (or even earn, by selling power back to the Grid).
 
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