Solar PV & Battery Storage Case Studies
Real renewable energy projects designed and installed by Green Energy Systems across Hampshire, Berkshire, Surrey, Wiltshire and the surrounding areas.
Every property is different. These case studies show how carefully designed solar PV, battery storage and energy management systems can reduce grid electricity use, improve energy independence and deliver long-term financial savings.
Our case studies include system design details, annual electricity consumption, installed equipment, performance results and expected return on investment.
Commercial Solar PV for a Custom Cabinetry Manufacturer in Devon
49 kWp Solar PV System | Battery Ready | 50 kW C&I Three-Phase Inverter
Green Energy Systems designed a 49.2 kWp commercial solar PV system for a custom cabinetry manufacturer in Devon.
The business consumes approximately 74 MWh of electricity each year, with a significant proportion of demand occurring during normal working hours. This made the site well suited to commercial solar generation, allowing a high proportion of the electricity produced to be consumed directly within the manufacturing facility.
The system was designed to reduce dependence on grid electricity, lower operating costs and provide greater protection against future energy-price increases.
Annual electricity use: 74,055 kWh
Solar PV array: 49 kWp
Battery storage: 0 kWh
Inverter: 49kW three-phase
Estimated result: 51% reduction in grid electricity use
Installed by Green Energy Systems Ltd — MCS certified, RECC member and fully insured.
Project Overview
This domestic solar PV and battery storage project was designed around high annual electricity consumption, improved self-consumption and long-term reduction in grid electricity use.
Annual Consumption
74,055
kWh per year
Solar PV Array
49 KWp
Battery Storage
0 KWh
Result
50% reduction in grid electricity use
The Challenge
The customer operates a specialist custom cabinetry manufacturing business with annual electricity consumption of approximately 74 MWh.
A substantial part of the site’s electricity demand is created by woodworking machinery, extraction equipment and workshop operations during daylight hours. Rising electricity costs were therefore having a direct impact on the company’s operating expenditure.
The main engineering challenge was the corrugated roof construction. The mounting system needed to provide secure structural attachment while maintaining the roof’s weatherproofing and accommodating the layout and condition of the existing roof sheets.
The Solution
Green Energy Systems designed a 49.2 kWp roof-mounted commercial solar PV system using 74 high-output 665 W Aiko Gen 3 modules.
The array was paired with a Sigenergy commercial inverter system selected to provide efficient three-phase power conversion and detailed system monitoring.
A mounting system suitable for the corrugated roof profile was specified, with careful attention given to fixing positions, load distribution, waterproofing and long-term roof integrity.
The system is projected to generate approximately 36,300 kWh of renewable electricity each year. Because the business operates primarily during daylight hours, a high proportion of this generation can be consumed directly on site rather than exported to the grid.
Results
The system is projected to provide approximately 36,300 kWh of renewable electricity each year, equivalent to almost half of the company’s current annual electricity consumption.
By using solar generation directly within the workshop during operating hours, the business is expected to reduce its reliance on imported grid electricity and materially lower its annual energy costs.
Based on the projected generation, electricity tariff and daytime consumption profile, the system has an estimated payback period of approximately four years.
The installation is also expected to avoid approximately 6.4 tonnes of grid-related carbon emissions each year, based on the applicable UK electricity conversion factor.
Project Investment
£46,055
Annual Consumption
13,235 kWh before installation
Estimated Carbon Reduction
Approximately 6.4 tonnes CO₂e annually
Estimated Payback
4 years ROI
Annual Generation
36,300 kWh before installation
System Capacity
49 kWp PV with Battery Ready Inverter