Battery Storage Systems
Store excess solar energy or cheap overnight electricity. Fox ESS & Sigenergy approved partners with smart tariff integration and backup power capability.
Google Reviews
Trusted by customers across West Wales
Real feedback from a Which? Trusted Trader
“Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates plann…”
Julia Dain
in the last week
Choose Your Battery Storage Solution
Indicative guide from
~£1,500 (5 kWh retrofit)
On-Grid Battery Storage
Smart battery systems that work with the grid to optimize your energy usage. Store cheap overnight electricity or excess solar energy, and use it during peak times.
- Grid-tied smart optimization
- Time-of-use tariff savings
- Solar excess storage
- Remote monitoring system
- 10-year product warranty
- Professional installation
Certification:
Fox ESS & Sigenergy Partner
Indicative guide from
POA
Off-Grid Battery Storage
Complete energy independence with off-grid battery systems. Perfect for remote properties or those wanting complete self-sufficiency with backup power capability.
- Complete grid independence
- Backup power capability
- Solar integration ready
- Expandable modular design
- Weather-resistant installation
- Emergency power systems
Certification:
Fox ESS Elite
Indicative guide from
POA
Commercial Battery Storage
Large-scale battery storage for businesses. Reduce demand charges, provide backup power for critical operations, and optimize energy costs across your facility.
- Commercial-scale systems
- Peak demand reduction
- Critical backup power
- Grid export optimization
- Advanced monitoring systems
- ROI analysis and reporting
Certification:
MCS Certified
All battery prices shown are indicative guide prices (inc 0% VAT) — priced per job following a full site survey and bespoke design. As a guide: retrofit to existing solar ~£1,500–£2,000 (5 kWh) or ~£2,000–£3,000 (10 kWh); ~£2,000 (~5 kWh) or ~£3,000 (~10–12 kWh) when added alongside a new solar install. Larger systems priced per job.
Why Choose Battery Storage?
Maximize Savings
Store cheap overnight electricity with smart tariffs like Octopus Go, or store excess solar energy to use when electricity prices are high.
Backup Power
Automatic backup power during outages keeps essential appliances running. Perfect for rural properties where power cuts are more common.
Energy Independence
Reduce reliance on the grid with your own stored energy. Combine with solar panels for maximum energy independence and cost savings.
Fox ESS & Sigenergy Battery Systems
System Options
- ~5kWh Battery (retrofit to existing solar)~£1,500–£2,000 guide
- ~10kWh Battery (retrofit to existing solar)~£2,000–£3,000 guide
- ~10–12kWh with new solar install~£3,000 guide
- Standalone battery-only systemsPriced per job
Indicative guide prices (inc 0% VAT), including the inverter where needed — priced per job following a full site survey and bespoke design.
Smart Features
- Intelligent tariff optimization
- Solar generation priority
- Grid export control
- Remote monitoring app
- Automatic backup switching
- Modular expansion capability
Smart Tariff Integration
Our battery systems automatically charge during cheap rate periods (like Octopus Go's 7.5p/kWh overnight rate) and discharge during expensive peak times, maximizing your savings without any manual intervention.
Related guides
Expert guides to help you size a battery, pick a tariff and plan your West Wales installation.
Battery Storage & Octopus Go
Sizing a Fox ESS or Sigenergy battery for off-peak charging — tariff maths and payback analysis.
Solar Battery Storage: The West Wales Guide
Battery sizing, hybrid vs AC-coupled systems, costs, warranties and payback for Welsh homes.
Hybrid Inverter + EV Charger Integration
Combining hybrid inverters with OZEV-approved EV chargers and solar-diverted charging.
What Our Customers Say
Real feedback from homeowners across West Wales
5.0
15 Google reviews
"Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates planned and was completed in reason…"
Julia Dain
in the last week
"We recently had heat pump solar and battery installed by Renewable future Wales. I found them to be respectful and conscientious throughout from the initial survey down to the installation and commissioning they were excellent. Their work is high quality. Its easy to be scepti…"
Paul Smith
2 months ago
"An excellent job completed by RFW. Our existing, no longer functioning solar thermal system removed. 17 solar panels on east, south and west facing roofs installed. Battery also installed. All done in three days with favourable weather. The initial discussion with Tom was ver…"
ROBERT BRIGGS
2 months ago
"We had an air source heat pump and solar panels installed by Renewable Future Wales to replace an oil boiler for central heating and hot water. They provided great service before, during and after the installation, and we've been very happy with the system 3 months in."
Isaac Bowen
2 months ago
"Renewable Future Wales recently installed a 10kw solar system with Battery and Emergency Power Switchover at my home in Login. Tom / Simon and his team were very professional, the Solar Panels were installed on my garage roof with an approximately 30mtr long trench dug for the…"
Peter Lupton
3 months ago
"Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates planned and was completed in reason…"
Julia Dain
in the last week
"We recently had heat pump solar and battery installed by Renewable future Wales. I found them to be respectful and conscientious throughout from the initial survey down to the installation and commissioning they were excellent. Their work is high quality. Its easy to be scepti…"
Paul Smith
2 months ago
"An excellent job completed by RFW. Our existing, no longer functioning solar thermal system removed. 17 solar panels on east, south and west facing roofs installed. Battery also installed. All done in three days with favourable weather. The initial discussion with Tom was ver…"
ROBERT BRIGGS
2 months ago
"We had an air source heat pump and solar panels installed by Renewable Future Wales to replace an oil boiler for central heating and hot water. They provided great service before, during and after the installation, and we've been very happy with the system 3 months in."
Isaac Bowen
2 months ago
"Renewable Future Wales recently installed a 10kw solar system with Battery and Emergency Power Switchover at my home in Login. Tom / Simon and his team were very professional, the Solar Panels were installed on my garage roof with an approximately 30mtr long trench dug for the…"
Peter Lupton
3 months ago
"Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates planned and was completed in reason…"
Julia Dain
in the last week
"We recently had heat pump solar and battery installed by Renewable future Wales. I found them to be respectful and conscientious throughout from the initial survey down to the installation and commissioning they were excellent. Their work is high quality. Its easy to be scepti…"
Paul Smith
2 months ago
"An excellent job completed by RFW. Our existing, no longer functioning solar thermal system removed. 17 solar panels on east, south and west facing roofs installed. Battery also installed. All done in three days with favourable weather. The initial discussion with Tom was ver…"
ROBERT BRIGGS
2 months ago
"We had an air source heat pump and solar panels installed by Renewable Future Wales to replace an oil boiler for central heating and hot water. They provided great service before, during and after the installation, and we've been very happy with the system 3 months in."
Isaac Bowen
2 months ago
"Renewable Future Wales recently installed a 10kw solar system with Battery and Emergency Power Switchover at my home in Login. Tom / Simon and his team were very professional, the Solar Panels were installed on my garage roof with an approximately 30mtr long trench dug for the…"
Peter Lupton
3 months ago
"Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates planned and was completed in reason…"
Julia Dain
in the last week
"We recently had heat pump solar and battery installed by Renewable future Wales. I found them to be respectful and conscientious throughout from the initial survey down to the installation and commissioning they were excellent. Their work is high quality. Its easy to be scepti…"
Paul Smith
2 months ago
"An excellent job completed by RFW. Our existing, no longer functioning solar thermal system removed. 17 solar panels on east, south and west facing roofs installed. Battery also installed. All done in three days with favourable weather. The initial discussion with Tom was ver…"
ROBERT BRIGGS
2 months ago
"We had an air source heat pump and solar panels installed by Renewable Future Wales to replace an oil boiler for central heating and hot water. They provided great service before, during and after the installation, and we've been very happy with the system 3 months in."
Isaac Bowen
2 months ago
"Renewable Future Wales recently installed a 10kw solar system with Battery and Emergency Power Switchover at my home in Login. Tom / Simon and his team were very professional, the Solar Panels were installed on my garage roof with an approximately 30mtr long trench dug for the…"
Peter Lupton
3 months ago
"Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates planned and was completed in reason…"
Julia Dain
in the last week
"We recently had heat pump solar and battery installed by Renewable future Wales. I found them to be respectful and conscientious throughout from the initial survey down to the installation and commissioning they were excellent. Their work is high quality. Its easy to be scepti…"
Paul Smith
2 months ago
"An excellent job completed by RFW. Our existing, no longer functioning solar thermal system removed. 17 solar panels on east, south and west facing roofs installed. Battery also installed. All done in three days with favourable weather. The initial discussion with Tom was ver…"
ROBERT BRIGGS
2 months ago
"We had an air source heat pump and solar panels installed by Renewable Future Wales to replace an oil boiler for central heating and hot water. They provided great service before, during and after the installation, and we've been very happy with the system 3 months in."
Isaac Bowen
2 months ago
"Renewable Future Wales recently installed a 10kw solar system with Battery and Emergency Power Switchover at my home in Login. Tom / Simon and his team were very professional, the Solar Panels were installed on my garage roof with an approximately 30mtr long trench dug for the…"
Peter Lupton
3 months ago
"Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates planned and was completed in reason…"
Julia Dain
in the last week
"We recently had heat pump solar and battery installed by Renewable future Wales. I found them to be respectful and conscientious throughout from the initial survey down to the installation and commissioning they were excellent. Their work is high quality. Its easy to be scepti…"
Paul Smith
2 months ago
"An excellent job completed by RFW. Our existing, no longer functioning solar thermal system removed. 17 solar panels on east, south and west facing roofs installed. Battery also installed. All done in three days with favourable weather. The initial discussion with Tom was ver…"
ROBERT BRIGGS
2 months ago
"We had an air source heat pump and solar panels installed by Renewable Future Wales to replace an oil boiler for central heating and hot water. They provided great service before, during and after the installation, and we've been very happy with the system 3 months in."
Isaac Bowen
2 months ago
"Renewable Future Wales recently installed a 10kw solar system with Battery and Emergency Power Switchover at my home in Login. Tom / Simon and his team were very professional, the Solar Panels were installed on my garage roof with an approximately 30mtr long trench dug for the…"
Peter Lupton
3 months ago
"Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates planned and was completed in reason…"
Julia Dain
in the last week
"We recently had heat pump solar and battery installed by Renewable future Wales. I found them to be respectful and conscientious throughout from the initial survey down to the installation and commissioning they were excellent. Their work is high quality. Its easy to be scepti…"
Paul Smith
2 months ago
"An excellent job completed by RFW. Our existing, no longer functioning solar thermal system removed. 17 solar panels on east, south and west facing roofs installed. Battery also installed. All done in three days with favourable weather. The initial discussion with Tom was ver…"
ROBERT BRIGGS
2 months ago
"We had an air source heat pump and solar panels installed by Renewable Future Wales to replace an oil boiler for central heating and hot water. They provided great service before, during and after the installation, and we've been very happy with the system 3 months in."
Isaac Bowen
2 months ago
"Renewable Future Wales recently installed a 10kw solar system with Battery and Emergency Power Switchover at my home in Login. Tom / Simon and his team were very professional, the Solar Panels were installed on my garage roof with an approximately 30mtr long trench dug for the…"
Peter Lupton
3 months ago
"Renewable Future Wales installed solar panels, battery, home back up, EV charger, and heat pump, at our home. Their initial visit was informative and helpful and they provided us with detailed quotes and specs. The work started on the dates planned and was completed in reason…"
Julia Dain
in the last week
"We recently had heat pump solar and battery installed by Renewable future Wales. I found them to be respectful and conscientious throughout from the initial survey down to the installation and commissioning they were excellent. Their work is high quality. Its easy to be scepti…"
Paul Smith
2 months ago
"An excellent job completed by RFW. Our existing, no longer functioning solar thermal system removed. 17 solar panels on east, south and west facing roofs installed. Battery also installed. All done in three days with favourable weather. The initial discussion with Tom was ver…"
ROBERT BRIGGS
2 months ago
"We had an air source heat pump and solar panels installed by Renewable Future Wales to replace an oil boiler for central heating and hot water. They provided great service before, during and after the installation, and we've been very happy with the system 3 months in."
Isaac Bowen
2 months ago
"Renewable Future Wales recently installed a 10kw solar system with Battery and Emergency Power Switchover at my home in Login. Tom / Simon and his team were very professional, the Solar Panels were installed on my garage roof with an approximately 30mtr long trench dug for the…"
Peter Lupton
3 months ago