Case Studies
Our Projects & Success Stories
At GM Electrical Services, we take immense pride in our completed projects. Our case studies highlight the diverse range of electrical and renewable energy solutions we've delivered for both domestic and commercial clients across Lancashire and the UK. Explore how we've helped our customers achieve energy independence, reduce costs, and enhance their electrical infrastructure.
Featured Case Studies

Large-Scale Domestic Solar PV & Battery Storage in Shipley
Client: Homeowner (Large Multi-Family Household)
Service: 120kW Solar PV with 200kWh DC Battery Storage
Challenge: Astronomically high energy usage with an average daily consumption of around 400kWh, resulting in substantial electricity bills for this large multi-family household. The customer needed a system big enough to make a real dent in their day-to-day grid dependence and protect against future energy price rises.
Solution: We designed and installed 224 Jinko 440W solar panels paired with a SolaX Aelio 60kW Hybrid Inverter connected to 200kWh of DC-coupled battery storage. The system charges via solar during the day and tops up from off-peak grid tariffs overnight, then discharges through the day and evening to cover the household's heavy load. We managed the full G99 DNO application, structural roof checks, scaffold, install, commissioning and handover.

Domestic Solar PV & Battery Storage in Penwortham, Preston
Client: Local Homeowner
Service: Solar PV (3kW) with 5kWh Battery Storage
Challenge: Rising energy bills and a desire for greater energy independence. The customer wanted a system sized appropriately for a typical family home, with enough battery capacity to cover most of the evening peak.
Solution: We designed and installed a bespoke rooftop solar array integrated with a 5kWh battery storage system, fully MCS certified. The system generates clean electricity during daylight hours, stores any surplus in the battery, and discharges through the evening — significantly reducing reliance on the grid.

Commercial EV Fleet Charging in Bolton
Client: Local Business
Service: 2 × 22kW EV Chargers for Fleet Vehicles
Challenge: The business needed a reliable, fast charging solution for their growing EV fleet, with chargers positioned conveniently at their parking bays for minimal downtime between shifts.
Solution: We installed two 22kW commercial EV chargers directly outside the business premises, one at each parking bay. The installation included an upgraded supply, dedicated circuits, and proper protective devices. Both units provide rapid overnight charging so vehicles are ready for the start of every working day.

Domestic EV Charger Installation in Preston
Client: Local Homeowner
Service: 7kW myenergi Zappi Untethered EV Charger
Challenge: The homeowner had just bought their first electric vehicle and needed a convenient, cost-effective way to charge at home rather than relying on public charging infrastructure.
Solution: We installed a 7kW myenergi Zappi untethered charger at the homeowner's parking space. The Zappi is solar-compatible, so the customer can later add a PV system and divert surplus generation directly to the car for the cheapest possible miles. We handled the full OZEV-approved installation, supply check, and commissioning.
Your Project Could Be Our Next Success Story!
We are always eager to take on new challenges and help our clients achieve their energy and electrical goals. If you have a project in mind, big or small, don't hesitate to reach out.
