EAR Engineering
Available for Service in Helderberg & Cape Town

Solar Battery Storage Installation

Professional Engineering Services

Solar panels generate electricity during the day. Without battery storage, that power is lost the moment the sun goes down or cloud cover reduces output.

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Why Battery Storage Makes Financial Sense

A solar installation without battery storage still saves money, but it has a fundamental limitation. You only benefit from the power your panels produce while you are actively using it. For most households, the peak production window is during the middle of the day. The hours when demand is highest—typically evenings when everyone is home—are also when the panels are producing the least.

Battery storage bridges that gap. Instead of feeding surplus daytime generation back to the grid at a low feed-in tariff, you store it and use it yourself at times when it would otherwise cost you money to buy from Eskom. As electricity tariffs continue to rise, the value of every unit you store and self-consume increases alongside them.

For businesses that previously relied on diesel generators during outages, the comparison is even more direct. A battery system replaces an ongoing, unpredictable fuel cost with a fixed capital investment that pays for itself over time and requires very little ongoing maintenance by comparison.

Lithium battery bank connected to solar inverter by EAR Engineering in Stellenbosch

Our Battery Storage Installation Services

We size and install battery systems correctly based on your actual electricity usage data, whether you are starting fresh or adding to an existing array.

Part of a New Solar Installation

The most straightforward way to add battery storage. We design and size the panels and batteries together to match your energy goals.

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Adding to Existing Solar

If you already have solar panels, we can often add batteries. We assess your inverter compatibility and confirm what is needed before quoting.

Commercial Battery Storage

Larger battery systems for office parks, estates and factories. We carry out installations up to the capacity our commercial solar projects require.

Battery Storage: Key Considerations

Before choosing a battery system, here are the most important factors to understand:

FactorWhat It Means for You
Usable capacityThe amount of energy actually available to use (kWh). Bigger is not always better — right-sizing matters more.
Cycle lifeHow many charge and discharge cycles the battery is rated for before capacity degrades. More cycles = longer life.
Inverter compatibilityNot all batteries work with all inverters. We confirm compatibility before recommending any battery system.
WarrantyWe only install batteries with solid local warranty support so you are not left without recourse.
ScalabilityCan you add more batteries later? We design systems with future expansion in mind where possible.

How the Installation Process Works

1

Assessment

We review your existing solar setup, electricity usage, and goals.

2

Recommendation

We recommend capacity and confirm compatibility, providing a quote.

3

Installation

We install the batteries, configure the inverter, and test the system.

4

Handover

We walk you through monitoring state of charge and overall system behaviour.

Areas We Cover

We install solar battery storage systems across the Helderberg, Boland and greater Western Cape:

Somerset West
New battery installs, additions to existing solar
Stellenbosch
Residential, estate and commercial battery storage
Strand
Residential battery storage installation
Gordon's Bay
Residential battery systems
Franschhoek
Estate, guesthouse and residential batteries
Paarl
Residential and commercial battery installations
Durbanville
Residential and agricultural battery storage
Cape Town
Residential and commercial battery storage

Why Clients Choose EAR Engineering

Honest Sizing

We size systems based on your actual usage, not on what produces the biggest invoice.

Qualified Installers

All battery installations are done by our qualified team and include proper electrical certification.

Inverter Checks

We assess inverter compatibility before recommending anything, so there are no surprises during installation.

Climate Experience

Six years of solar experience across the Helderberg means we understand what systems work well over time.

Local Support

We are a local business. If something needs attention after installation, you are not dealing with a national call centre.

What Our Clients Say

Rated highly by homeowners and businesses in Helderberg & Cape Town.

Frequently Asked Questions

Everything you need to know about working with EAR Engineering.

In most cases yes, but it depends on your inverter. If your current inverter is a grid-tied only model it cannot manage a battery bank and will need to be replaced or supplemented with a battery inverter. We assess your existing setup and confirm what is needed before providing a quote.
This depends on how much electricity you use in the evenings and overnight, how long you want to be able to run during an outage, and your budget. We work this out from your actual usage data rather than guessing. A system that is right for your usage will always outperform an oversized one that costs more to purchase and sits partially unused.
Battery lifespan is measured in charge and discharge cycles rather than years, because how heavily you use the battery affects how long it lasts. Most quality lithium batteries are rated for several thousand cycles before their capacity drops to around 80% of the original. For a system cycling once per day, that typically translates to a useful lifespan of eight to fifteen years depending on the technology and usage pattern.
Modern lithium battery systems require very little maintenance compared to older battery technologies. The main things to monitor are the battery's state of health over time and the accuracy of your inverter's charge settings. We check both as part of our annual solar maintenance visits.
During an outage, the system automatically switches to battery power and your property continues running from stored energy. How long the batteries last depends on their capacity and what you are running. Essential appliances on a well-sized system can typically run through a standard load shedding cycle and into the following morning before the panels start charging again.
Yes. Even without load shedding as a factor, battery storage increases the proportion of your electricity that comes from your own panels rather than the grid. As Eskom tariffs continue to rise, every unit you self-consume rather than buy becomes more valuable. The financial case for battery storage is not dependent on load shedding continuing at current levels.
We cover Somerset West, Strand, Gordon's Bay, Stellenbosch, Franschhoek, Paarl, Durbanville and Cape Town. Our base is in Somerset West so response times across the Helderberg are especially fast.
Call us on 021 855 4462 or send us a message. A more accurate quote can be given once we have assessed your property, existing setup and energy requirements in person.

Ready to Get Started?

Professional electrical, aircon & solar in Helderberg + Cape Town.

021 855 4462

* 1-Hour Callbacks during business hours. Call for immediate emergencies.