Enerthia Energy works with clients across four connected offerings — Energy Consultancy, Business Development, Product & Service Endorsement, and Funding Origination. This briefing sits where they meet: one of South Africa’s largest energy assets is already installed, already paid for, and has been sitting idle — and it changes the storage question for offtakers, property companies, EPCs and funders.
What changed for rooftop solar
South Africa has just gained one of its largest new sources of grid-supporting storage without pouring a single new foundation. Plentify has been appointed the exclusive virtual power plant (VPP) partner to Deye, a manufacturer of residential solar inverters and batteries. The partnership sets out to coordinate 160,000 Deye residential batteries already installed across the country into a single, digitally managed resource of about 2.7 GWh of controllable capacity. That is almost twice the 1.4 GWh of Eskom’s current Battery Energy Storage Programme — a multi-year, multibillion-rand infrastructure build.
How a virtual power plant works
A virtual power plant links thousands of small, distributed energy resources — home batteries, and even electric water heaters — and operates them together as though they were a single power station. Nothing new is built; software does the coordinating. Deye has already run VPP programmes in mature markets including Australia and France, and is now bringing that operational experience to its South African installed base.
Why it matters now
South Africa’s energy transition has been shaped by load-shedding, and the result is unusual: batteries are included with more than 90% of local solar systems, a higher proportion than almost anywhere in the world. But with load-shedding receding, those batteries now sit idle for large parts of the day. The cheapest grid asset in the country may be the one already bolted to the wall — and aggregation is what turns it into capacity the grid can lean on.
What it means for you
For offtakers, property and facility companies, EPCs and funders alike, this reframes the storage question. Value can be unlocked from assets that are already in place, not only from new capital projects. It also signals where the market is moving: storage increasingly earns its keep by being coordinated, not merely installed. If you are weighing solar plus storage, the right question is no longer only what to build, but how what you build will be used once it is live.
This is the ground Enerthia works across. As an energy consultancy we assess your load profile and the right technical and commercial structure; through business development and product and service endorsement we connect you to trusted delivery partners and technology; and as a funding originator we help structure and source the capital that makes a project bankable. Enerthia originates funding — it does not fund from its own balance sheet, and it is not an EPC contractor. Its role is to line up the right partners around a project so it can be built and financed.
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