New solar panels- some advice please

45 Posts

Hello dear forum members,
I'm doing a lot of research and asking for quotes for a 5-6kwp solar panels array coupled with a 5kw battery.
One of the best quotes (please advise if it is actually a reasonable price) is:
-13x Trina Vertex S+ 415W Dual Glass N-Type (White Backsheet) solar panel;
-G2 GivEnergy 5kW Hybrid inverter
-G2 GivEnergy 5.2kWh LiFePO4 Battery
installed at £10500
I would kindly ask for your feedback on the system and price.
A better system in that budget (£11k)?
What is your opinion on that quote?
Thank you all very much.
I'm doing a lot of research and asking for quotes for a 5-6kwp solar panels array coupled with a 5kw battery.
One of the best quotes (please advise if it is actually a reasonable price) is:
-13x Trina Vertex S+ 415W Dual Glass N-Type (White Backsheet) solar panel;
-G2 GivEnergy 5kW Hybrid inverter
-G2 GivEnergy 5.2kWh LiFePO4 Battery
installed at £10500
I would kindly ask for your feedback on the system and price.
A better system in that budget (£11k)?
What is your opinion on that quote?
Thank you all very much.
Essex, 15 Trina Vertex S+ 415W, Huawei SUN2000-6KTL-L1, 10kw LUNA2000 batteries
0
Latest MSE News and Guides
Replies
20 off Trina solar 400 panels TSM-400-DE09.08 1 £ 3,430.00
1 off 6 kW Luxpower solar hybrid inverter £ 1,800.00
2 off 3.2 kW Greenlinx battery £ 3,000.00
All rail, hooks and clamps for an on-roof installation £ 800.00
Electrical sundries £ 200.00
Materials Subtotal £ 9,230.00
1 Scaffold erection to 2 sides of property £ 800.00
1 Installation of on-roof solar panels to roof 1,250.00
1 Electrical installation 1,400.00
1 NICEIC and MCS certification £ 100.00
1 G99 application to local DNO (note: cost is indicative) £ 640.00
Services Subtotal £ 4,190.00
Materials & Services Subtotal £ 13,420.00
Do you really need batteries? Have you done the maths on selling your excess energy at current export prices vs. storing it? For many, you will likely never recover the cost of battery storage, especially without an EV to justify the cheap charging tariffs. Then there's the relatively shorter life vs. the rest of the system.
I would suggest that not rushing into this will save you money and, potentially, future hassles. Try getting a good installer who will supply you with quality components at a fair price.
- 40% of panels in an East/ West rooftop orientation.
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)
I will also need that.
Trina vertex s+ is the 2022 generation panels, worth looking into that. Is important to use the most up to date technology (considering the budget) as once up the panels will be there a long time.
£13k seems ok, obviously I advice to negotiate and not accept the first price offered. Is in line with what I have received (considering the differences).
I'm sure nobody will spend thousands in order to sell energy to the grid with 5p/kw(average price). Most of the electricity consumption is done in the afternoon when your system will generate less. With or without the battery the roi is nowhere near what all the installers are predicting. For an average price of 10k you are looking easily at 10-12 years. Obviously that varies a lot. The other day an expert was telling me that for a £11.500 ( his quotation ) my roi will be in 3 years. 😅
Should give you a fair idea of how much markup is on the quote.
- 40% of panels in an East/ West rooftop orientation.
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)
- 40% of panels in an East/ West rooftop orientation.
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)
As clearly stated on their website, if you think that you might benefit from switching then you should call them.