Solar Battery Storage & Grid Export
Pros and Cons Explained
Maximise Your Solar Investment with Smart Storage and Export Options

McGuinness Renewables installs advanced solar battery storage systems and provides expert guidance on selling excess solar electricity back to the grid.
Serving homes and businesses across North Wales, Wrexham, and the wider UK, we help you make informed decisions that support energy independence and long-term savings.
What is Solar Battery Storage?
Solar battery storage allows you to store the energy generated by your solar PV system during the day for use at night or during peak tariff periods.
When combined with a SmartGrid-ready setup, you can also export unused energy to the grid and receive payments through schemes like the Smart Export Guarantee (SEG).

What We Offer
Pros & Cons of Solar Battery Storage Systems
Pros
- Lower Energy Bills
Use more of your self-generated energy and rely less on expensive grid electricity. - Greater Energy Independence
Stay powered during outages or grid failures. - Grid Flexibility
Store off-peak or surplus solar power for use when you need it most. - Environmental Impact
Further reduce your carbon footprint by using clean energy day and night. - Compatible with New or Existing Solar PV Systems
Retrofit battery options available.
Cons
- Upfront Cost
Battery systems represent a significant initial investment. - Longer ROI Period
Payback times may be longer than for solar PV alone, depending on usage patterns. - Limited Capacity
Some systems may not cover your full overnight or peak usage without additional storage.
We help clients in North Wales, Wrexham, and UK-wide assess whether a battery system is right for their property or usage patterns, and how best to scale it.
Selling Solar Electricity Back to the Grid – Is It Worth It?
Thanks to the SEG scheme, you can now earn money for exporting unused solar electricity back to the grid.
Grid Export Benefits
- Monetise Surplus Power
Get paid for energy you don’t use. - Fast Payback When Usage Is Low
Ideal for businesses closed at weekends or homes unoccupied during the day. - Clean Energy Contribution
Help reduce demand on fossil fuel power sources.
Considerations
- SEG Rates Vary by Supplier
Some providers offer higher export rates than others – we’ll help you compare. - You Still Need a Battery to Maximise Use
Without storage, you only benefit during active generation hours. - Usage Profile Matters
Export is more beneficial if your property doesn’t use much power during the day.
Our Process

Assessment
We review your current solar PV setup and energy usage to advise on battery sizing and export potential.

Installation
We supply and fit GivEnergy-approved battery systems, integrated with your existing inverter or as a standalone addition.

Aftercare
Our team offers ongoing performance checks, battery maintenance, and SEG support.

Why Choose McGuinness Renewables?
- 30+ Years of Experience in energy systems
- Certified Experts – MCS, NIC, RECC, QANW, GivEnergy approved
- Smart, Future-Proofed Systems
- Transparent Pros and Cons Advice
- Serving North Wales, Wrexham, and the UK
What Our Clients Say
Ready to Explore Battery Storage or Grid Export?
Let’s assess if it’s right for your property.
Whether you’re in Wrexham, North Wales, or across the UK, get expert advice with no pressure – just practical, cost-saving solutions.
McGuinness Renewables
21 Tir Llwyd Industrial Estate, Kinmel Bay, North Wales, LL18 5JA
01745 318 009
info@mcguinnessrenewables.com








