Our Work

18.8kWp Domestic Solar & Battery Installation in Derby
Published on: 21 August 2025
The Challenge
Sean, a homeowner in Derby, approached us looking to drastically reduce his reliance on the National Grid and protect his household against fluctuating energy prices. Living in a large domestic property with exceptionally high energy consumption, it was immediately clear that a standard, off-the-shelf 4kW residential solar package would not touch the sides of his daily demand. He required a robust, high-capacity system capable of generating and storing enough power to achieve genuine energy independence without compromising the aesthetics of his home.
The PAC Solution
To meet these demanding energy requirements, our engineering team designed a bespoke, high-yield system scaled specifically for the property. We installed a substantial 18.86kWp solar PV array to maximise generation across the available roof space.
To ensure none of this generated power went to waste, we integrated a premium Sigen energy ecosystem. We fitted a 12kW Sigen Inverter alongside a massive 24.18kWh SigenStor battery setup. This sheer storage capacity allows Sean to capture surplus solar energy during the day to deploy throughout the evening and night. We also installed the Sigen Energy Gateway, providing seamless management of the power flow and offering complete visibility over the system's performance.
The Results
The finished installation in Derby is a powerhouse of domestic renewable energy. By moving away from undersized, standard systems and investing in a perfectly scaled 18.86kWp array and heavy-duty battery storage, Sean has effectively insulated his household against volatile grid pricing.
The system delivers a rapid payback period of just 6 years and 9 months, generating substantial financial savings of £3,839 per annum. Sean now enjoys total energy independence with a resilient setup designed to handle his property's high consumption for decades to come.
Book a survey or get a quote today at https://pac-electrical.co.uk/get-a-quote.
Are you planning a similar project?
Based in Derby, our expert team provides professional 12kW Sigen Inverter, 24.18kWh SigenStor Battery Storage, Sigen Energy Gateway installations across the East Midlands. Let’s discuss your requirements.
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