I used NRG as they were local to me, Rob came out and explained everything in detail, we walked through the quote, options, mounting etc. DNO approval was submitted and chased in good time, install day was smooth and asked them to fix ridge tiles while scaffolding up. Sigenergy app was setup and working with ease. Rob then sorted export approval with DNO. Guys cleaned up after themselves and took all rubbish. Excellent service A1+

Kevin Doherty
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