Solar Installation in Plymouth: System Performance and Financial Results

E Electrical recently completed a domestic solar and battery installation for a homeowner in Plymouth. The system was designed to reduce grid electricity use, increase self-consumption, and improve long-term running costs.

System Specification

The installed system includes the following components:

Solar panels
18 × JA Solar 445 W modules (JAM54D-40-445-LB-TS-MC4)

Inverter
1 × SunSynk 8 kW hybrid inverter (SUNSYNK-8K-SG01LP1)

Battery storage
2 × Sunsynk 5.12 kWh batteries
Total usable storage: 10.24 kWh

The system is sized to balance generation, storage, and household demand.

Installation Details

Installation was completed on 16 September 2024. All work was carried out in line with current electrical regulations, manufacturer guidance, and MCS requirements where applicable.

The installation included panel mounting, inverter and battery installation, cabling, testing, and commissioning.

Energy Offset and Cost Reduction

Based on system design and usage data, the installation is expected to offset approximately 178% of the household’s annual electricity consumption.

This level of generation allows:
• A significant reduction in imported grid electricity
• High self-consumption through battery storage
• Reduced exposure to energy price changes

Depending on usage patterns and tariffs, annual electricity costs may be reduced by up to 50%. Surplus energy may also be exported to the grid where applicable.

Environmental Impact

The system provides measurable environmental benefits:

Estimated annual generation
8,331 kWh

Estimated carbon reduction
Approximately 2 tonnes of CO₂ per year

Equivalent impact
Comparable to planting around 405 trees annually

Customer Outcome

The homeowner reported a positive experience with both the installation process and system operation. The system provides greater control over energy use and supports long-term energy planning.

Solar Installations by E Electrical in Plymouth

This project reflects E Electrical’s approach to designing solar and battery systems that focus on performance, compliance, and real-world outcomes.

E Electrical installs solar panels and battery storage systems for domestic properties across Plymouth, Devon and Cornwall. Systems are designed to suit the property, usage profile, and future energy requirements.

For homeowners considering solar and battery storage, E Electrical can provide system design, installation, and certification to current standards.