If you are looking for solar battery installers in Cornwall, Trusted Tradesman can help you find local businesses that install battery storage systems for homes and businesses.

A solar battery can be installed alongside a new solar PV system or added to an existing solar panel installation. By storing electricity generated during the day, a battery can allow more of your solar energy to be used later, rather than being exported to the grid.

Cornwall has a growing number of businesses working in solar PV and battery storage.

Find solar battery installers in Cornwall

Choosing a suitable battery is about more than simply choosing the largest available capacity. A good installer should consider your electricity consumption, existing or proposed solar PV system, available roof space, expected solar generation, household usage patterns and whether you want backup power.

When comparing solar battery installers in Cornwall, you may want to ask:

  • What battery capacity do you recommend?
  • Will the battery work with my existing solar panels?
  • Can you install a battery without installing new solar panels?
  • Which battery manufacturers and models do you install?
  • Will the battery provide backup power during a power cut?
  • What inverter will be used?
  • Can the system be expanded in the future?
  • What monitoring app is included?
  • What warranty is provided?
  • Are you appropriately certified for the installation?
  • Will you deal with the necessary electrical and grid connection requirements?

The right battery depends on the property and how electricity is being used, so an installer should normally assess the system rather than simply recommend a standard package.

Solar battery storage in Cornwall

Solar batteries are increasingly being considered alongside solar PV installations because solar panels generally produce most of their electricity during daylight hours, while household electricity consumption often continues into the evening.

For example, a home may generate surplus electricity from its solar panels during the middle of the day when nobody is using much electricity. Instead of exporting all of that surplus, a battery can store some of it for later use.

This can be particularly useful for households that:

  • Generate more solar electricity than they can immediately use
  • Have significant evening electricity consumption
  • Want to increase their use of self-generated electricity
  • Already have solar panels but no battery
  • Are considering solar panels and battery storage together
  • Have an electric vehicle or other substantial electrical loads
  • Want to investigate battery storage as part of a wider home energy system

Battery storage can also be installed independently of a new solar PV installation. Some Cornwall installers specifically offer battery storage as an upgrade to existing solar systems.

Solar battery installers for existing solar panels

You do not necessarily need to replace your solar panels to install a battery.

If you already have a solar PV system, an installer can assess whether a compatible battery can be added. Depending on the existing installation, this could involve integrating the battery with the existing inverter or installing additional equipment.

An installer should establish:

  • The make and model of your existing inverter
  • The age and condition of your solar PV system
  • The size of your existing solar array
  • Your current electricity consumption
  • How much electricity your panels generate
  • How much electricity is currently exported
  • Whether your existing system can be integrated with the proposed battery

This assessment is important because not every battery is suitable for every existing solar installation.

Solar panels and battery storage

If you are installing solar panels for the first time, it can make sense to consider battery storage at the same time.

A combined solar PV and battery storage system can be designed around the way your property generates and consumes electricity.

A typical system may include:

  1. Solar PV panels
  2. A solar inverter
  3. A battery storage system
  4. Monitoring equipment or an app
  5. Electrical protection and associated equipment
  6. The necessary connection to the property’s electrical system

The installer can calculate the expected generation and recommend an appropriate battery capacity.

A larger battery is not automatically a better battery. If the battery is substantially larger than the amount of surplus electricity your solar system can regularly produce, some of its capacity may go unused. Conversely, a battery that is too small may reach full charge before your solar panels have finished generating surplus electricity.

Solar battery installation for homes in Cornwall

Domestic battery storage can be suitable for a wide range of properties, from smaller homes to larger houses with substantial electricity consumption.

A domestic installer may consider:

  • Number of occupants
  • Annual electricity consumption
  • Solar PV capacity
  • Electricity usage during the day
  • Electricity usage during the evening
  • Electric vehicle charging
  • Heat pumps and other high-load appliances
  • Existing battery or inverter equipment
  • Available installation location
  • Whether backup power is required

For a household with relatively low electricity consumption, a smaller battery may be appropriate. A larger household with solar PV, an EV and significant evening electricity use may require a different system.

A professional assessment is therefore preferable to selecting a battery purely by advertised capacity.

Solar battery storage for businesses

Battery storage is not limited to domestic properties.

Commercial solar battery installers in Cornwall can design systems for businesses that have substantial electricity demand or want to make greater use of on-site renewable generation.

Commercial battery storage may be considered alongside:

  • Commercial solar PV
  • Warehouses
  • Workshops
  • Offices
  • Farms
  • Retail premises
  • Hospitality businesses
  • Industrial buildings
  • Agricultural buildings
  • Other commercial properties with suitable electrical demand

Commercial systems can be considerably more complex than domestic installations. The installer may need to assess the site’s electricity demand, existing electrical infrastructure, solar generation, available space and the proposed battery capacity.

Battery storage with commercial solar

For a business considering solar panels, adding battery storage can allow the system to be designed around the company’s electricity consumption rather than simply the amount of electricity generated.

For example, a business may generate substantial solar electricity during daylight hours but continue to have electricity demand after solar generation has fallen. Battery storage can potentially help bridge that gap.

The economics and technical requirements of commercial battery systems vary considerably, so businesses should obtain a properly designed proposal rather than relying on a standard domestic battery package.

Battery storage for electric vehicles

If you have an electric vehicle, it is worth discussing this with your solar battery installer.

An EV can represent a substantial electrical load, and the combination of:

solar panels + battery storage + EV charging

can form part of a wider home energy system.

The installer can consider when the vehicle is normally charged and whether solar generation, battery storage and EV charging can be coordinated effectively.

Some installers also provide EV charger installation, making it possible to have the different parts of the system considered together.

Choosing a solar battery installer in Cornwall

There are several things worth checking before choosing an installer.

Check relevant certification

For many homeowners, MCS certification is an important consideration when comparing renewable-energy installers. The Cornwall Green Trades directory currently identifies businesses with MCS certification and separates businesses offering Solar PV from those offering Battery Storage.

You should check the current certification status of any installer before proceeding.

Ask about the battery manufacturer

Battery technology varies considerably between manufacturers and models.

Ask the installer which battery they are proposing and why it is appropriate for your property.

Consider:

  • Usable capacity
  • Warranty
  • Expected lifespan
  • Maximum charge and discharge rate
  • Compatibility with your inverter
  • Monitoring facilities
  • Expandability
  • Backup functionality
  • Manufacturer support

Look beyond battery capacity

A battery advertised as having a particular number of kilowatt-hours does not necessarily mean that all of that capacity will be available for normal use.

Ask the installer about usable capacity, charging and discharge limits and how the proposed battery will interact with your solar PV system.

Consider the location

The physical location of the battery is another important consideration.

Your installer should determine an appropriate location based on the manufacturer’s requirements, electrical installation requirements, accessibility and the characteristics of your property.

Ask about backup power

If you want the battery to continue supplying electricity during a power cut, make this clear before the system is designed.

A normal grid-connected battery system should not automatically be assumed to provide backup electricity during a power cut. Backup functionality can require specific equipment and system design.

Solar battery installation and planning permission in Cornwall

Planning requirements depend on the type of installation and the property.

Cornwall Council states that solar equipment on domestic buildings and land is usually permitted development, although permitted development rights do not apply in every situation. The council also highlights additional considerations for conservation areas, World Heritage Sites, listed buildings and standalone installations.

Battery storage can also involve electrical and building-safety considerations. Your installer should establish what requirements apply to the particular installation rather than assuming that every property is treated in the same way.

If your property has unusual planning circumstances, is listed, is within a conservation area or has another relevant restriction, check the position before work begins.

Solar battery installers across Cornwall

You can find solar battery installers serving towns and areas throughout Cornwall, including:

  • Truro
  • Falmouth
  • Penryn
  • Redruth
  • Camborne
  • St Austell
  • Newquay
  • Penzance
  • Helston
  • Bodmin
  • Wadebridge
  • St Ives
  • Hayle
  • Launceston
  • Liskeard
  • Callington
  • Bude
  • Saltash
  • Perranporth
  • Padstow
  • and surrounding areas

Some installers operate from one Cornwall town while covering a much wider geographical area, so it is worth checking the service area rather than limiting your search to businesses with an address in your immediate town.

Solar battery installers in Truro

Truro is home to businesses working across solar PV, battery storage and wider renewable-energy technologies. A number of Cornwall renewable-energy businesses are based in or around Truro.

If you are looking for solar battery installers in Truro, compare installers based on their battery-storage experience, certification, proposed equipment and service area.

Solar battery installers in Newquay

Newquay and the surrounding area are served by solar and renewable-energy businesses offering solar PV and battery-related services.

If you are looking for solar battery installers in Newquay, ask whether the installer can provide battery storage as a standalone installation or as part of a complete solar PV and battery system.

Solar battery installers in St Austell

There are solar and electrical businesses serving St Austell and the surrounding area.

If you are looking for solar battery installers in St Austell, consider installers who can assess both existing solar PV systems and new solar-and-battery installations.

Solar battery installers in Falmouth

Falmouth and the surrounding area are served by renewable-energy and electrical contractors.

For solar battery installation in Falmouth, ask potential installers about battery compatibility, system design, certification, warranty and whether they provide ongoing support.

Solar battery installers in Redruth and Camborne

Redruth and Camborne are important locations for renewable-energy and electrical businesses in Cornwall.

If you are searching for solar battery installers in Redruth or Camborne, you may find installers offering combinations of solar PV, battery storage, electrical work and other renewable technologies.

Solar battery installers in Penzance and West Cornwall

Homeowners and businesses in West Cornwall can compare solar battery installers serving Penzance, Hayle, St Ives and surrounding areas.

Because some Cornwall installers cover substantial parts of the county, it is worth asking about the installer’s normal service area when requesting a quotation.

Solar battery installers in Helston

Helston and the surrounding area have businesses involved in solar PV, battery storage and renewable energy.

If you are looking for solar battery installers in Helston, compare the proposed battery system as well as the installer. The cheapest quotation is not necessarily the most suitable if the system has been poorly sized or does not meet your requirements.

How much does a solar battery cost in Cornwall?

The cost of a solar battery installation depends on much more than the battery’s advertised capacity.

Factors can include:

  • Battery manufacturer and model
  • Usable battery capacity
  • Inverter requirements
  • Whether you already have solar panels
  • Whether a new solar PV system is being installed
  • Electrical work required
  • Installation location
  • Backup functionality
  • Monitoring equipment
  • System complexity
  • Whether additional components are required

For this reason, there is no single price that applies to all solar battery installations in Cornwall.

The best way to establish the likely cost is to ask several suitably qualified installers for comparable quotations based on your property and electricity requirements.

Questions to ask before accepting a quotation

Before choosing an installer, ask for a clear explanation of:

The battery
What make and model is being proposed, and what is its usable capacity?

The inverter
Is the proposed inverter compatible with the battery and solar PV system?

The warranty
How long is the battery warranty and what does it cover?

The expected performance
What assumptions have been made about solar generation and electricity consumption?

Backup power
Does the system provide backup electricity, and if so, which circuits can it supply?

Monitoring
What app or monitoring system will you receive?

Certification
What relevant certification does the installer hold?

Aftercare
Who should you contact if the system develops a problem?

Future expansion
Can additional battery capacity be added later?

Getting clear answers to these questions makes it much easier to compare quotations from different installers.

Find solar battery installers in Cornwall

Whether you already have solar panels and want to add battery storage, or you are planning a complete solar PV and battery installation, Trusted Tradesman can help you find businesses operating in Cornwall.

A good installer should assess your individual circumstances, explain the available options and design a system around your electricity consumption rather than simply selling you a standard battery package.

Compare solar battery installers in Cornwall and find a local business to discuss your requirements.

Related solar services in Cornwall

If you are planning a renewable-energy project, you may also be interested in:

Trusted Tradesman is building a growing network of solar and renewable-energy professionals across Cornwall, making it easier for homeowners and businesses to discover local installers and enquire directly about their requirements.