Random Renewables Thread

TheWonderLlama · 04-06-2026 09:27AM

was looking at various larger batteries and came across this monster.

https://www.alibaba.com/product-detail/JAKA-Solar-Outdoor-IP65-42kWh-Solid_1601715250452.html?spm=a2700.shop_index.89.4.418a7c88sntQ4G

42kwh! Price is reasonable, even after adding VAT and customs. Delivery might be a bit saucy.

Anyone any experience of JAKA batteries?

graememk · 04-06-2026 12:55PM

I think this thread is stuck, poke#1

graememk · 04-06-2026 12:55PM

Poke#2

josip · 04-06-2026 02:06PM

https://www.boards.ie/discussion/comment/124523004#Comment_124523004

305kg, that won't be installed by one man and a gopher.

paulbok · 13-06-2026 10:40AM

https://www.pv-magazine.com/2026/06/12/first-9-in-1-heat-pump-transforms-load-into-an-energy-hub/

Interesting move to centralise control of all renewables in the home.

TheWonderLlama · 15-06-2026 12:10PM

If its relying on AI, its only a matter of time before it decides to bake someone in their house.

ted1 · 15-06-2026 08:31PM

https://www.boards.ie/discussion/comment/124451008#Comment_124451008

they don’t include it in unit costs because the costs of providing a cable to the house, a meter, billing service etc is all the same. And not related to usage

graememk · 15-06-2026 09:08PM

https://www.boards.ie/discussion/comment/124553470#Comment_124553470

Not disagreeing with that. But they could if they wanted to is my point. My response was to someone asking if the standing charge was ring fenced to go to ESBN etc. which it is not.

Standing charges used to be a lot more varied, some would be 100-200 more than others. And if low use, you'd be sometimes better with a higher kWh rate and a low standing charge than the cheapest kWh rate and a high standing charge.

I had done the numbers on my own use, and an out farms use etc.

Standing charge could be zero, but it doesn't make sense for it to be.

discostu1 · 21-06-2026 06:52PM

ThiThis very random, I was out most of yesterday snd looked up the Solis App at 22.40 last night. Slightly surprised I was still pulling a tiny amount of Solar

irishchris · 22-06-2026 12:07AM

Just got my generation one smart meter changed to 4g one last week. Ever since the time is just under an hour off. Assume this will mean another esb callout? Anyone any experience of same with theirs?

deezell · 23-06-2026 02:56PM

This old chestnut not going away;

https://www.euronews.com/my-europe/2026/06/22/eus-phase-out-of-china-made-inverters-gets-a-reality-check

josip · 24-06-2026 11:39AM

I don't recall ever seeing lower wind output.

https://www.eirgrid.ie/grid/real-time-system-information

deezell · 24-06-2026 12:50PM

https://www.boards.ie/discussion/comment/124575851#Comment_124575851

It's miserable, but thats the nature of wind. With all this sun, I'm assuming the contribution of domestic solar doesn't show up as it's internal to the consumers grid, not accounted for in the national grid.

josip · 24-06-2026 02:08PM

https://www.boards.ie/discussion/comment/124576095#Comment_124576095

Correct but domestic production manifests itself as a pronounced dip in demand during solar hours, often referred to as a duck curve.

deezell · 25-06-2026 06:58AM

Duck, as in drop down low, or the curve shape? Either way there was more than 600MW demand drop yesterday at midday. This remaining demand is also being supplied by no small amount of FIT. It if walks and quacks like a duck, its a duck alright.

Screenshot_20260625_063858_Samsung Browser.jpg

deezell · 25-06-2026 07:05AM

I live only kms from these two solar farms, massive but mosty invisible to the passer by. The first one is on the former turf fields in the bog of Allen. It's a full circle in ways, I used to buy my cut turf from this exact bog in the 80s, now I assume my midsummer leccie is partially supplied from there and the other one only 3km behind our gaff.

paulbok · 25-06-2026 10:55AM

https://www.boards.ie/discussion/comment/124577989#Comment_124577989

Interesting to see the small demand spike around 1am, presumably as EV charging starts.

Victor · 25-06-2026 11:02AM

https://www.boards.ie/discussion/comment/124577989#Comment_124577989

It's the shape of the daily demand graph. Duck curve - Wikipedia

In Ireland's case, on weekdays we would normally have low demand overnight, slight peaks at around breakfast and lunch and a main peak around 6pm.

josip · 25-06-2026 12:19PM

https://www.boards.ie/discussion/comment/124577994#Comment_124577994

Although it's geographically close to you, from Open Infrastructure Map it looks like it's connected to the Maynooth Substation so everyone in the Maynooth (and beyond) areas would benefit similarly from it. I'll let the electrical engineers correct my layman understanding.

If there's anyone with solar panels installed on the same line as you however, you and anyone else on that line will be using the electricity they generate with any extra making it's way back to the transformer.

https://openinframap.org/#10.41/53.3528/-6.7095

Victor · 25-06-2026 01:26PM

https://www.boards.ie/discussion/comment/124578430#Comment_124578430

That, or Turlough Hill going into pump mode. They like to use as few pumps as possible for as long as possible. It's stable and if they need to reduce demand by 73MW, they just put it into neutral.

It seems to have happened several days in a row.

deezell · 25-06-2026 01:57PM

https://www.boards.ie/discussion/comment/124578650#Comment_124578650

There's a huge expansion taking place at that substation on an adjacent site thats possibly double the existing footprint, it's been ongoing since late last year. One part of it is a ' High inertia synchronous compensator', a giant spinning mass, which you probably know is essential for plugging renewables into the stable grid. They appear to have purchased the entire farm next door, and more, for this expansion. I've been passing by this station all my life , but this upgrade appears huge. No doubt this is part of the upgrade they want domestic customers to pay for by means of a levy, rather than raising their own capital paid back by projected returns. Of course, its really a levy on self generation, the more people produce at home, the more the ESBN will need paying before you actually consume a cent of their electricity. Thus we have the highest leccie bills in Europe.

deezell · 01-07-2026 08:06AM

Huge price rises for EV charging as ESB and Ionity push fast charge rates past 80c/kwh, about €16 per 100 km of average ev driving. This compares to about €10 for the same amount of Diesel to go 100km in an average car. ESB furthermore seek to introduce a standing charge just like your home account, of €4.79 monthly just to pull up to the ev "pumps'.

Imagine having to pay a fiver for every monthly fill of Diesel/petrol just to use the pump? There would be riots. Add to this that the revenue have yet to tax charger consumption with appropriate motor fuel duties to reflect the fact that it's up to 80% generated by fossil fuel anyway, so the ESB is getting a free ride, subsidised by the massive taxes imposed only on road use fossil fuel, thus disguising these ridiculous EV fuel margins that would close a fossil fuel distributor if they tried it on.

So much for supporting EV ownership. Unless you can charge at home, it's just uneconomical and you're at the mercy of these unregulated outlets. Even if you home charge, it feels like you're confined to your home, with longer outings running the risk of eye watering charging bills. Oh, the ESB also states that the current (or lack of current) infrastructure means less than 8 out of 10 chargers can be used simultaneously, so expect 'fast' chargers to slow down down anyway when the forecourt is busy. Unless you pay to jump the queue. You can see this coming a mile away. Dynamic pricing of everything to enrich corporates, unless we compel our politicos to regulate before it's too late.

josip · 01-07-2026 09:30AM

https://www.boards.ie/discussion/comment/124594031#Comment_124594031

I'd agree with some of what you're saying. Mainly from a societal perspective.

I think it's just wrong that the richer in our country, ie the ones who are able to afford their own houses, can avail of cheaper motoring and that those in general who are less well off, especially renters, usually cannot. I would like to see legislation brought in that by 2029 landlords of houses have to provide an EV, by 2030 landlords with dedicated off-street parking and by 2031 landlords with dedicated on-street parking.

I also find it wrong/stupid that we're disincentivising EV ownership for apartment dwellers, many of whom will have/need a car because the public transport just isn't there or practical for their place of work.

I don't know where you get your "up to 80%" from though? Last year 38% of the domestically produced electricity on our grid came from renewables and the imported electricity from the UK would be cleaner again. 2026 will be in the 40s.

graememk · 01-07-2026 09:33AM

https://www.boards.ie/discussion/comment/124594031#Comment_124594031

Not arguing on cost.

But the membership has been always there.

There always has been a PAYG option, too.

If a high user for both ionity and esbn there is a point where the membership is worth it.

deezell · 01-07-2026 09:46AM

So if circleK offer 3% off provided you do most of you're filling thats a promotion, but you don't have to pay a montlly fee to get this price. @josip post a week ago about low wind was showing 20% for renewables. Chatge your car on a calm overcast winter day, youre using fossil fuel or imported electricity. 100% it's fair to say.

Random Renewables Thread

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