3 miles from our base

Battery Storage Installation in St Austell

Battery storage specialists just 3 miles from St Austell. Store solar energy and slash your bills.

Gas Safe Registered

MCS Certified

5.0/5 (14 reviews)

200+ Installations

Battery Storage for St Austell Homes

St Austell has one of the highest solar panel penetration rates in Cornwall, and many existing solar installations are now ready to benefit from battery storage — particularly those installed before battery prices fell dramatically. CCS Heating & Renewables installs Foxstar, Tesla Powerwall, and FoxESS battery systems across St Austell and the PL25/PL26 area. Adding a battery to an existing solar installation is typically a single-day job and increases self-consumption of your own solar electricity from around 30–40% up to 70–90%, meaning far less electricity bought from the grid at 24.67p/kWh. For new solar installations, we almost always recommend battery storage at the same time: the combined package maximises returns and avoids a second installation visit later. The coastal areas of Carlyon Bay and Charlestown — with their high-value properties and south-facing roofs generating significant solar output — are particularly strong candidates for Tesla Powerwall or Foxstar battery systems. Evening demand in households with an EV charger or a heat pump can be met by stored solar energy rather than grid electricity.

Common property types in St Austell: Victorian granite terraces, 1930s bungalows, modern executive homes, premium coastal properties at Carlyon Bay and Charlestown

Battery storage systems are classified as permitted development for domestic use. No planning permission required in most cases.

Areas we cover from St Austell: Serving St Austell town centre, Mount Charles, Bethel, Carlyon Bay, Charlestown, Duporth, and surrounding villages

Postcodes served: PL25, PL26

What We Offer

Our Services in St Austell

Solar Panels

MCS certified solar PV installation for homes and businesses. Generate your own electricity, cut bills by up to 70%, and...

Battery Storage

Store excess solar energy and use it when you need it most. We install Foxstar, Tesla Powerwall, and SIG Energy battery ...

Boilers

Gas Safe registered boiler installation, replacement, and servicing. We fit Worcester Bosch, Vaillant, and Viessmann boi...

Underfloor Heating

Wet underfloor heating systems for new builds, extensions, and renovations. Provides warm, even heat throughout your hom...

EV Chargers

Home and commercial EV charger installation. We fit all major brands including Zappi, Ohme, and Easee with smart chargin...

Hot Water

Supply and installation of hot water cylinders including Mixergy smart cylinders and Megaflo unvented systems. Solar div...

Battery storage works best alongside these services in St Austell:

Solar panels in St Austell EV charger in St Austell Boiler installation in St Austell

Our Process

How It Works

Step 1

Free Survey

We visit your St Austell property to assess your needs, measure heat loss, and discuss the best options.

Step 2

Design & Quote

We design a bespoke system, identify all eligible grants including the £7,500 BUS scheme, and provide a transparent fixed-price quote.

Step 3

Installation

Our MCS certified engineers install your system cleanly and efficiently, typically within 2–4 days, with minimal disruption to your home.

Step 4

Aftercare

Full system handover, MCS certification, warranty registration, BUS grant application completion, and ongoing support when you need it.

Book Your Free Survey No obligation · Free survey · MCS certified

Other Areas We Serve Near St Austell

St Austell St Austell St Austell

Customer Reviews

What Our Customers Say

Google

"CCS installed our air source heat pump and the whole process was brilliant from start to finish. They handled the BUS grant application, and our heating bills have dropped significantly. The house is warmer than it ever was with our old oil boiler."

James & Sarah T.

St Austell

Air Source

Google

"Added a Foxstar battery to our existing solar panels. CCS fitted it in a single day and now we use almost all of our solar generation ourselves. The app monitoring is fantastic too — I can see exactly where every unit goes."

Catherine W.

Lostwithiel

Battery Storage

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Our Work

Recent Projects Near St Austell

Case studies from our team working across mid-Cornwall.

£7,500 Boiler Upgrade Scheme

10 kW Daikin Heat Pump in a Victorian Terrace, St Austell

St Austell • 4-bedroom Victorian stone terrace

Underfloor Heating Retrofit in Kitchen Extension, St Austell

St Austell • 3-bedroom semi-detached with new

View all case studies

Common Questions

Frequently Asked Questions About Battery Storage in St Austell

Is a battery worth it with solar panels?

A battery significantly increases the value of your solar panels. Without a battery, you typically use only 30–50% of the solar energy you generate — the rest is exported to the grid at 15–25p/kWh. With a battery, self-consumption rises to 70–90%, meaning you use your own free solar energy instead of paying 24.67p/kWh from the grid. A 9.5kWh battery system costs £4,500–£7,000 installed (at 0% VAT). In Cornwall, battery storage typically pays back in 5–7 years.

How long do home batteries last?

Modern lithium iron phosphate (LiFePO4) home batteries — including Foxstar and Tesla Powerwall — are warranted for 10 years and designed to last 15+ years. LiFePO4 chemistry is the safest, most stable battery chemistry available, with no thermal runaway risk and excellent long-term capacity retention.

Can I add a battery to my existing solar panels?

Yes, batteries can be retrofitted to any existing solar PV system. We install AC-coupled battery systems (such as the Foxstar or Tesla Powerwall) alongside your current inverter, compatible with any solar system regardless of age. A retrofit typically takes 1 day and we handle all DNO notifications. The 0% VAT rate applies to battery storage installed alongside solar.

Can a battery provide backup power during a power cut?

Yes — some home batteries including the Tesla Powerwall and certain Foxstar configurations provide backup power during a grid outage, automatically switching to battery power when the grid fails. This is a particularly useful feature for rural properties in Cornwall where power cuts can occur. Not all batteries include backup as standard, so we advise on this when recommending a system.

What is the best battery to buy with solar panels?

Foxstar and Tesla Powerwall are our most frequently installed systems. Foxstar offers excellent value, strong UK customer support, and modular capacity. Tesla Powerwall has a sleeker design, excellent software, and strong backup power features. The right choice depends on your budget, whether backup power matters to you, and whether you want to expand capacity in future. We install both and provide impartial advice.

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