When a homeowner in Kidlington embarked on an extensive redevelopment of their property, adding solar to the project was a straightforward decision. With scaffolding already up and work underway, it was the ideal moment to future-proof the home at the same time.
This is one of the most cost-effective times to go solar. Integrating panels into an existing build or renovation project removes many of the additional costs associated with a standalone installation, and means the system is earning from day one of the homeowner moving back in.
System Highlights
- 10 x Trina Vertex 450W panels
- EcoFlow PowerOcean 6kW three-phase hybrid inverter
- 2 x EcoFlow PowerOcean LFP 5kWh batteries (10kWh total storage)
What does this mean in practice?
The system generates an estimated 18 to 22kWh on a good summer’s day, falling to 10 to 15kWh in spring and autumn, and 2 to 4kWh in winter. Across the year, that covers an estimated 55 to 75% of the household’s electricity demand in summer, 35 to 55% in spring and autumn, and 15 to 25% in winter.
The two batteries provide 10kWh of storage, allowing solar generated during the day to be used in the evening rather than drawn from the grid. The system is also compatible with off-peak tariffs, so the batteries can be topped up overnight at lower cost and discharged during peak hours, keeping bills down even when solar generation is limited.
The three-phase inverter with two independent MPPT inputs gives flexibility in how the panels are configured across the roof, which is particularly useful on a property that has undergone significant structural changes.
Solar installations for domestic properties are zero-rated for VAT. If you are planning a renovation, extension or self-build, it is well worth factoring solar in from the start rather than returning to it later.
Planning a renovation or new build? Get in touch to find out how to build solar in from the start.
