The Financial and Environmental Impact of Solar Panels

Solar panels are increasingly used by homeowners looking to reduce electricity bills and generate their own energy. Questions often arise around how much solar installations actually save in real conditions.

E Electrical is an NICEIC Approved Contractor, MCS certified installer, and HIES Consumer Code member based in Plymouth. Real installation data from completed projects provides clear evidence of both financial savings and environmental impact.

Solar Installations by E Electrical

Accreditation and experience play a major role in system performance and reliability. E Electrical designs and installs solar and battery systems in line with current standards, ensuring systems operate safely and efficiently over their full lifespan.

All systems are designed around property size, electricity usage, and future demand.

Financial Savings from Solar Installations

Case study data shows that solar panels significantly reduce reliance on grid electricity. When combined with battery storage, self-consumption increases further, reducing exposure to rising energy prices.

Savings vary by system size, usage patterns, and tariffs, but long-term reductions in electricity bills are consistent across installations.

Case Study One: 8.00 kWp Solar System

This installation consists of:
• LONGi solar panels
• Sunsynk hybrid inverter
• Sunsynk battery storage

Estimated annual generation:
6,891 kWh

The system size allows a high level of on-site energy use, resulting in substantial reductions in imported electricity.

Initial system cost:
£13,203.23

Estimated lifetime electricity bill savings:
£100,890

Case Study Two: 6.48 kWp Solar System

This installation consists of:
• Canadian Solar panels
• Sunsynk hybrid inverter
• Sunsynk battery storage

Estimated annual generation:
6,952 kWh

Despite the smaller array size, strong system design and usage alignment allow the system to deliver high annual output and meaningful cost savings.

Initial system cost:
£12,194

Estimated lifetime electricity bill savings:
£88,436

Payback and Long-Term Value

For both systems, reduced electricity bills offset the initial installation cost over time. Battery storage improves payback by increasing self-consumption and reducing reliance on peak-rate grid electricity.

Payback periods depend on usage, tariffs, and future energy prices, but long-term value remains strong.

Environmental Impact of Solar Energy

In addition to financial savings, both systems reduce carbon emissions year after year. Lower grid consumption results in measurable reductions in CO₂ output.

These reductions are comparable to:
• Removing thousands of car miles annually
• Planting hundreds of trees
• Reducing reliance on fossil-fuel generation

Solar Installations by E Electrical in Plymouth

These case studies demonstrate how properly designed solar and battery systems deliver consistent financial and environmental benefits.

E Electrical installs solar panels and battery storage systems for domestic properties across Plymouth, Devon and Cornwall, providing compliant installations designed for long-term performance.