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Energy solutions

Store the power you need. Keep essential systems running when the grid does not

Storage is what turns solar from a daytime saving into power you can rely on after dark. How much you need depends entirely on what you refuse to lose.

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Sunnovate technicians setting up a Vange inverter and lithium battery

Why it matters

Generation without storage only solves half the problem

An array without a battery produces when the sun is out and nothing when it is not — which is precisely when most households need power most.

Storage moves the energy you generate during the day into the evening and overnight. It is also what lets a system carry you through an outage without starting a generator, and what protects sensitive equipment from the gap during a changeover.

Shifts daytime generation into evening and night use

Carries the property through outages without a generator

Reduces generator running hours and the fuel that goes with them

Supports a move toward genuine energy independence

What sets the size

Four things decide how much storage you need

Battery capacity is an output of these decisions, not a starting point.

Your load

What you run during the backup window — not your total daily consumption averaged flat.

Backup duration

Eight hours covers a night. Twelve covers a night plus a dull morning. Twenty-four is a large and expensive bank.

Operating strategy

Whether the bank is cycled daily or held mainly in reserve changes both sizing and chemistry.

System configuration

Battery voltage and chemistry have to match the inverter and the array feeding them.

How we size it

From what you run to what you install

The same sequence every time, because storage sized from a guess is storage that disappoints.

List the load

Which appliances must stay on during an outage, and for how long each.

Set the window

How many hours of autonomy you actually need — the honest number, not the reassuring one.

Account for losses

Usable capacity is not rated capacity. Depth of discharge and round-trip losses are built into the figure.

Match the system

Chemistry and voltage confirmed against the inverter and array.

Where storage earns its cost

Four situations, four different requirements

The right bank for a family home is the wrong bank for a clinic. These are the patterns we design for most often.

Homes

Evening and overnight load with nobody available to start a generator at 2am.

A bank sized to carry lighting, refrigeration, fans and connectivity through to sunrise.

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Offices

Computers, networking and cooling that cannot drop mid-working-day.

Storage sized around trading hours, with critical circuits prioritised on the backup path.

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Shops and businesses

Cold storage, tills and lighting where an outage stops trade immediately.

Capacity focused on the loads that stop revenue when they stop running.

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Critical systems

Security equipment, pumps and monitoring that must stay up regardless.

Continuous supply designed alongside the security installation rather than retrofitted onto it.

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Shop

Storage and related equipment

Battery capacity is quoted per property once the load and backup window are confirmed.

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Sunnovate engineers mounting a solar panel on a metal roof

Solar panels

Mono · poly · bifacial

Inverters

Hybrid · pure sine

Batteries

Lithium · tubular

Sunnovate engineer checking a hybrid inverter and lithium battery installation

Complete systems

Specified as one system

Common questions

What buyers ask us

How long will the battery last on backup?

That depends on your load and the usable capacity installed. The system finder estimates runtime from the appliances you select and the hours you ask for. A site assessment then confirms it against real measured demand.

Lithium or tubular?

Lithium costs more up front, gives more usable capacity per unit of rated capacity, and generally lasts longer under daily cycling. Tubular has a lower entry cost and remains reasonable for lighter cycling. Which is better value depends on how hard you will cycle the bank.

What does depth of discharge mean for me?

You cannot use all of a battery’s rated capacity without shortening its life. Sizing accounts for that, which is why a bank rated at ten units does not give you ten units of backup — and why quoting only rated capacity is misleading.

Can I add more storage later?

Often, yes, provided the inverter and configuration were chosen with expansion in mind. Tell us at design stage if you expect demand to grow and we will specify accordingly.

Do batteries need maintenance?

It varies by chemistry and installation. Maintenance and support arrangements are available for systems we install — tell us what is installed and we will confirm what a service arrangement covers.

Protect the infrastructure that powers your property.

The same team that designs your power system installs the cameras, access control and fire detection that protect it — specified together, on one backup path.

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Next step

Determine your storage requirement

Tell us what has to stay running and for how long. We will work out the rest.

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