Two numbers to start. Zero: the count of turbines, cells or transformers actually energised at Zen Energy’s flagship Templers battery site in South Australia’s mid-north, more than four years after the project first cleared planning. And somewhere north of a thousand: the number of jobs at a steelworks 400 kilometres away that the South Australian government had to step in and rescue last year. Zen Energy Australia sits at the intersection of both facts, and that’s not a coincidence — it’s the whole story.
Zen Energy is an Adelaide-based electricity retailer and renewables developer. It’s also, by ownership, part of the same corporate family as GFG Alliance, the industrial group controlled by British-Australian businessman Sanjeev Gupta. That link matters more than the marketing suggests.
An Adelaide retailer with an unusual parent #
Zen Energy’s majority shareholder is SIMEC Energy Australia, a GFG Alliance entity. The stake dates back to 2018, when GFG bought into what was then a small South Australian solar and retail business and rebadged it as the vehicle for its clean-energy ambitions on the east coast.
The pitch at the time was neat. GFG owned steel and mining assets that were huge, captive electricity consumers. Zen would be the retailer and generator that powered them, cheaply and eventually renewably, while also selling into the open market to households and businesses in South Australia and later New South Wales.
Follow the money and the logic still half makes sense. A vertically integrated energy arm sitting next to heavy industry is not a mad idea — Alinta and AGL have both run versions of it for decades, as we’ve covered in our profiles of Alinta’s quiet giant strategy and AGL’s own coal exit. The trouble is when the industrial half of the equation stops paying its bills, or nearly does.
The Whyalla problem next door #
In February 2025 the South Australian government took the extraordinary step of placing GFG’s Whyalla Steelworks into administration, appointing KordaMentha and unlocking hundreds of millions of dollars in emergency state and federal support to keep the blast furnace running and the town’s more than a thousand direct jobs intact. The government’s own account of the rescue, and the ongoing search for a long-term operator, sits on the South Australian Department for Energy and Mining’s site alongside the rest of the state’s industrial policy.
Zen Energy is a separate legal entity from the steelworks and has said so publicly, more than once. Fair enough — corporate structures exist for a reason, and there’s no evidence Zen’s retail licence or its balance sheet is entangled in Whyalla’s administration. But the shared surname, the shared shareholder, and the shared founder’s habit of announcing big things and delivering them slowly makes it very hard for outside observers, this masthead included, to treat the two as unrelated stories. GFG’s announcements over the years have had a certain Test-match quality about them — long periods of nothing much happening, then a sudden declaration.
The battery that keeps not quite arriving #
Templers is the project Zen has spruiked hardest. Development approval for a battery energy storage system in the hundreds of megawatts came through in the early 2020s, pitched as one of the biggest in the state. It would sit near existing transmission infrastructure in SA’s mid-north, taking advantage of the same grid congestion and volatility that has made the state a genuine laboratory for storage economics, a theme we’ve tracked in South Australia’s renewable energy record: what it hides.
On the public record, Templers still hasn’t reached a confirmed construction start. That’s not unusual in itself — plenty of approved batteries in the NEM queue sit for years waiting on finance, grid connection agreements or a slot in a support scheme like the Capacity Investment Scheme. AEMO’s own generation information data shows a long tail of committed-but-not-built projects across the grid. But when the parent company is also the subject of a state-brokered industrial rescue, financiers tend to ask harder questions about who’s actually standing behind the capital call.
We’ve argued before that the industry has a habit of building batteries to chase revenue streams rather than the grid need in front of it — see Are big batteries being built for the wrong job? — and Templers is a reasonable test case either way. If it gets built, it’ll be firming capacity SA genuinely needs. If it doesn’t, it joins a long list of announced-not-delivered storage that makes the state’s transition numbers look better on paper than in the control room.
Jay Weatherill’s second act #
Zen Energy’s most recognisable name isn’t Gupta’s. It’s Jay Weatherill, the former South Australian premier who lost office in March 2018 and turned up soon after as a senior Zen executive, running what the company has called its transition strategy. It was, and remains, one of the more pointed second acts in Australian energy — a premier who’d overseen the state’s push into wind and solar, and its infamous 2016 statewide blackout, going on to work for a company betting its future on exactly the technologies he’d championed in office.
Critics called it a conflict dressed up as continuity. Supporters called it the natural next step for someone who understood the state’s grid better than almost anyone. Both readings can be true at once.
The government contract that built the brand #
Zen’s commercial breakthrough was winning South Australia’s whole-of-government electricity supply contract in 2018, displacing an incumbent gentailer and covering several hundred state government sites. It’s the kind of deal that gives a small retailer credibility overnight — a government-scale customer, a multi-year revenue base, and a story to tell every other prospective commercial client in the state.
Zen has since pushed into New South Wales retail and pitched itself as a green-industry enabler more broadly, including flagged ambitions around hydrogen production tied to a future green steel pathway at Whyalla — the kind of use case we’ve said elsewhere genuinely justifies the technology’s cost, in Green hydrogen: where it genuinely makes sense. Whether that hydrogen ambition survives the steelworks’ administration and eventual sale to a new operator is an open question nobody in Adelaide can answer with confidence right now.
The honest read #
The honest read is that Zen Energy is a real retailer with a real government contract, a real (if slow) battery pipeline, and a genuinely awkward parent. None of that makes it a bad company. It makes it a company whose fortunes are harder to separate from GFG’s than either side would like, and a useful reminder that in Australian energy, corporate family trees matter as much as market share.
Watch Templers. If cranes turn up on site in the next year or two, that tells you the finance has separated cleanly from Whyalla’s troubles. If it doesn’t, that tells you something too — about how much appetite there really is to fund a GFG-linked project on its own merits, rather than on the strength of a press release.
— Marcus Wren, Editor
Photo by Art Wall - Kittenprint on Unsplash