fidelcastro
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Do you need planning for such an extensive array?Hello, many thanks for the great information in this post. I'm currently gathering quotes for solar pv, a battery and an inverter. The roof can hold 18x340w panels and 1 quote includes a battery of 8.2wh. However as the battery is an expensive component does anyone have real world experience on how much of the battery gets charged during the winter months?
As both my wife and I work from home we can manage an even usage of electricity by sequential usage of appliances etc.during the day. In addition we have electric underfloor heating (downstairs) which is charged overnight using the night meter and night rate; this night meter could be an option to top up the battery during the winter months.
From my experience the battery will get charged very little at all during the winter, few percent at best. FWIW I went with a 5kWh battery which is enough during the summer to get me through the night. From a purely financial perspective it only makes sense to get the smallest possible battery so you get the bigger grant. Personally I think the battery is great from a green/techy point of view and if I was doing it again I would go for the same 5kWh.Hello, many thanks for the great information in this post. I'm currently gathering quotes for solar pv, a battery and an inverter. The roof can hold 18x340w panels and 1 quote includes a battery of 8.2wh. However as the battery is an expensive component does anyone have real world experience on how much of the battery gets charged during the winter months?
As both my wife and I work from home we can manage an even usage of electricity by sequential usage of appliances etc.during the day. In addition we have electric underfloor heating (downstairs) which is charged overnight using the night meter and night rate; this night meter could be an option to top up the battery during the winter months.
There are a number of threads already on AAM where the topic of cobalt mining has been discussed. I think it would be better to keep the discussion there, as it has tended to destroy previous threads, taking them way off topic into frankly conspiracy theory territory.I like the posts above by Zenith et al. Great to reduce fossil dependency and if this also means less fumbling in the greasy til of the Saudi regime, so much the better...
But....
Can anyone comment on the detrimental aspect of lithium battery manufacture in terms of environmental damage in poor regions of the world viz. Congo and reports of child labour etc. Similar issue with EVs, are we exporting our problems to countries with less developed laws and protections.
This is a big drawback for me and allows greenwashing of the issues. Its a pity selling to grid isn't allowed which would remove need for batteries.
Perhaps Leo is right. If we are concerned about the environment, getting off our a*ses to reduce car dependency and proper building regs with improved insulation, eating local produce would be a good start.
This article covers some of the key points on planning permission for solar arrays - https://greennews.ie/landmark-planning-rooftop-solar/Do you need planning for such an extensive array?
Many thanks Zenith63, really helps with the decision.From my experience the battery will get charged very little at all during the winter, few percent at best. FWIW I went with a 5kWh battery which is enough during the summer to get me through the night. From a purely financial perspective it only makes sense to get the smallest possible battery so you get the bigger grant. Personally I think the battery is great from a green/techy point of view and if I was doing it again I would go for the same 5kWh.
If you have an electric car the need for the battery is further reduced as you can charge it when there is excess generation.
Doing it again I would have put up more panels, I installed 14 but probably could have got 18 up there similar to you. The panels are so cheap it makes sense to put them up while you have somebody on the roof.
The reason we say as many as possible is that in the middle of summer you’ll find say 7-8 panels would cover most of your usage for the day, but in the depths of winter you’d need maybe 30 to cover your usage. 14-15 tends to be about the max most people can fit on their roof, so we say put up the max you can (meaning that 14-15).A number of people on the thread suggest installing as many panels as possible, he was more of the view to install what you need, pumping electricity into the grid for free is a total waste of investment
I guess it depends on where you're installing the panels and how into DIY or managing contractors you are. I'm quite big into DIY but I definitely would not be heading onto my roof. I do a bit of electrical work as well, but I wouldn't dream of messing around with the solar side of things, it can be pumping through 3-4kW during the summer, not something I want to take chances with.Makes sense Zenith, I saw on boards many have suggested a smaller panel setup initially but then DIY adding of panels later, but I guess any saving in doing so is minimal and just hassle?
Do you have a breakdown or estimate of heat pump use annualy? I think though, that you'll find the heatpump will be in operation when the sun tends not to be providing much energyIf a property has a heat pump does it warrant more kW?
Initial comment from one installer prior to survey was "with a heat pump installed we would be looking at installing a 6.08kW solar PV array which is 16 x 380W Q-Cells solar PV panels. This accompanied with either 8.2kWh or 10.4kWh of battery storage depending on your overall requirements."
Hi,hi here is a solar PV quote i receive It seems ok but what do you think
2kW Solar PV + hot water starts at about €3,500 after the grant.
4kW Solar PV + 2.4kWh Battery storage at about €4,500 after the grant.
6kW Solar PV + 4.8kWh Battery storage at about €6,500 after the grant.
This include VAT and Instalation
thanks
This is a big drawback for me and allows greenwashing of the issues. Its a pity selling to grid isn't allowed which would remove need for batteries.
Before or after grant?Just FYI - Recently got a quote for 5.13kW, 13 panels roof installation, Inverter and 2x2.4kWh (4.8kWh) battery pack coming in at just over €12K.
The recent budget added a €200 exemption on income earned from generation, so that would tie in with a feed in tariff being imminent.On the RTE evening news today, Eamon Ryan strongly hinted that the arrangements for this would be in place in January.
I as told by installer that I'm not eligible for the grant as the house is too new...Before or after grant?
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