How to Choose the Right Size Solar and Battery System: A South West Perspective
A guide to working out the right solar panel and battery storage system size for your South West home, and the factors that affect it.
Solar and battery systems, designed properly for South West roofs
Professional installation by renewable energy experts based in the South West
What Devon Customers Say
What our customers across the South West say, in their own words
“We recently had a solar panel system, EV charger and battery fitted by Yarmer renewables. Matt, Char and team were amazing and installed the system quickly and with great care (despite the horrendous weather). The quality of the installation has really impressed us, while the advice and information throughout the process has been excellent. We're loving our new system!”
George
“From multiple quotes and pitches from solar providers, Matt at Yarmer Renewables delivered something refreshingly rare: a system built from product knowledge and from listening to what we wanted. The installation went incredibly smoothly and was professionalism from start to finish. It was a pleasure to have them on site.”
Laura
“I've just completed the 'who do I get to fit the solar?' puzzle with the maze of choices and deals out there. Matt from Yarmer Renewables was an accidental contact but it has been a happy accident! Although I initially had some reservations about using a smaller installer I would now unreservedly recommend them. Everything has been well designed and is bespoke to this house.”
Jerry
Ready to Go Solar?
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Why choose Yarmer Renewables?
We're an MCS certified renewable energy team with extensive experience across Devon, Cornwall, and Somerset.
MCS Certified Installation
Fully certified and insured solar panel installation with comprehensive warranties.
Local South West Experts
Based in the South West with deep knowledge of local conditions and requirements.
Premium Equipment
We fit panels, inverters and batteries from Aiko, Sigenergy, Anker SOLIX and Fox ESS, amongst others.
End-to-End Service
From initial design to ongoing maintenance, we handle every stage of your solar install.
Competitive Pricing
Transparent pricing with no hidden costs and competitive rates.
Excellent Customer Service
We monitor every system we install remotely, and we get in touch if something looks off.
Premium Solar Solutions
The panels, inverters and batteries we fit most often.
Aiko Gen 2 Solar Panels
Primary Panel
All-black, 475W standard (up to 485W). N-type ABC (all back contact) cells. This is what goes on most roofs we do.
- 475–485W output
- All-black design
- Up to 30-year product & performance warranty
- Low-light performance
Sigenergy Sigenstor
Premium Flagship
5-in-1: storage, EV DC charger, EV AC charger, backup gateway, inverter. Up to 54kWh per inverter. AI-optimised.
- 5-in-1 system
- EV DC + AC charging
- AI optimised
- Octopus & Axle VPP
Anker SOLIX X1
Coastal Grade
IP67 rated, corrosion level 5. Modular from 5kWh to 180kWh. What we specify for coastal properties.
- IP67 rating
- Corrosion level 5
- 5–180kWh scalable
- Modular design
Fox ESS
Great Value
Solid hybrid inverter and battery system. Octopus Intelligent Flux compatible out of the box. Good all-rounder for standard residential installs.
- Octopus Flux compatible
- Up to 23kWh
- DC hybrid
- Expandable
Explore the Complete Product Range
From solar panels to battery storage and smart monitoring systems, discover all the products and services we offer for your renewable energy needs.
View All Products →Latest from the blog
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Want to know if solar makes sense for you?
Drop us a message or give us a call — free survey, honest advice, no pressure.