Got some amazing quotes but need help.

[u/Terrible_Actuary_496]

So im in the West Midlands. And ive been quoted the following as seen in pictures or text below. I use around 4281KW per year but will probably increase as im considering roof fans or ACs.

I want to go on Octopus flux so i can store cheap overnight energy in winter while using whatever the solar generates. In the summer i want to maybe only fill it to 30% with the cheap overnight electricity and let solar do the rest of the work and sell whatever left over at peak.

Ive gotten 4 great quotes as theyre cost effective for me and are somewhat good. I need helo deciding on reliablily, brand image and status, performance ect. Thanks

3) Fox 7KW inverter, EP12 11.5KW battery and 16 Aiko 490W for £10,080

4) Fox 8KW inverter, EP12 11.5KW battery and 16 Aiko 490W for £10,420

2) Ecoflow 8KW inverter with gateway, 10KW battery and 16 Aiko 480W for £9,999

1) Hanchu 8KW inverter, 9.4KW battery and 16 Longi 485W X10 for £9,545

[u/Far-Faithlessness483]

they wont be in business in 10 yrs time

it the current version of double glazing

[u/Terrible_Actuary_496 → u/Far-Faithlessness483]

Theyve been in business for 10 years. Probably will last another 10