Case Study
New Build Solar & Battery Installation in Merthyr Tydfil
New Build Solar & Battery Installation in Merthyr Tydfil
IR Energy was commissioned to deliver a complete
solar PV and battery storage solution for a
development of five new build 4-bedroom homes
in Merthyr Tydfil.
The project aimed to meet EPC requirements,
support modern family lifestyles and deliver
long-term savings for the homeowners.
The Challenge
The developer wanted homes that met SAP and EPC standards in line with carbon reduction targets. Additionally, they required solutions that would:
- Lower energy costs for high-usage family homes
- Maintain power during blackouts
- Integrate seamlessly with the roof layout and modern design
- Enhance property value and marketability
System Design & Installation:
- Two houses fitted with 10 Aiko all-black panels
producing 4.2 kW and EcoFlow PowerOcean 5
kWh batteries. - Two houses fitted with 16 panels producing 6
kW and Fox ESS 5 kWh batteries. - One house fitted with 8 panels producing 3.6
kW (limited by Velux window placement) and a
Fox ESS 5 kWh battery.
The Solution
EV Charging:
- Three properties equipped with Zappi and OHME chargers, supporting EV use and energy management.
In-Roof Panels:
- Panels installed flush with the roof for a clean, tile-saving finish, coordinated directly with roofing tilers.
Energy Security & Grid Integration:
- Homes remain powered during outages and export surplus energy via SEG tariffs.
High-Quality Components:
- Premium Aiko panels and EcoFlow/Fox ESS batteries ensure efficiency and reliability.
Renewables Compliance:
- All systems support EPC requirements and carbon reduction targets.
Key Metrics
Payback: ~8 years
Energy savings: ~40% annually
Solar: 3.6kW to 6 kW per home
Ryan Morgan, Director of IR Energy, commented:
"For family homes with high energy usage, these systems offer significant cost savings while supporting sustainability goals. Each installation was carefully designed to optimise solar generation and battery storage, ensuring maximum efficiency and resilience. Homeowners can expect a payback period of around 8 years, with annual energy savings of approximately 40%. Additionally, EV chargers and battery storage provide added flexibility and energy security."
Benefits
Lifestyle & Usage: High-performing solar systems support modern family energy needs.
£
Value Addition: Solar PV and EV infrastructure enhance the appeal and marketability of the homes.
Energy Security: Homes remain powered during blackouts.
£
Cost Savings: Systems deliver long-term energy cost reductions, with estimated paybacks of 8 years.
EPC & Carbon Compliance: Supports developer goals for energy efficiency and sustainability.
Customer Feedback
"We chose solar panels as part of a self-build housing project, where they played a key role in meeting SAP and EPC requirements in line with carbon reduction targets. On a personal level, we also saw this as an important opportunity to reduce our energy bills long-term.
Our main goal was energy cost savings and the results have exceeded expectations. Between March and October we saw a significant reduction in costs. After our first year in the new home, we were almost £1,200 in credit with our energy supplier. Based on these figures, our overall energy costs have reduced by around 40% annually.
The team from IR Energy were excellent throughout the process. Ryan was easy to communicate with and very accommodating, working seamlessly alongside other trades such as the electrician and roofer to ensure everything was installed correctly, including coordination during first fix.
IR Energy came recommended to me and I would confidently recommend them to others. Furthermore on completing the installation Ryan and his team were not only cheaper than a number of local competitors, they also supplied us with all the relevant certificates, something I’m aware that other self builders who used different providers did not receive."
Dennis Lewis
IR Energy Customer, New Build Developer.
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