Energy & Batteries · 12 Nov 2025

From Concept to Reality: Tesseract ZERO | All Energy Expo

At All-Energy Australia, Tesseract Energy described Tesseract ZERO as a virtual power plant and distributed energy service designed for Australian households without solar or batteries. Under the proposed arrangement, Tesseract funds and installs solar panels, a battery and associated equipment, then supplies electricity to the customer at a fixed rate for 10 years. The company said its Adelaide offer is 28 cents per kilowatt-hour, with no CPI increase, while also covering maintenance and equipment issues during the agreement.

In this article

The short version

Key points

Tesseract ZERO is designed for households that do not currently have solar or battery storage.
Tesseract said it funds and installs the solar, battery, inverter and related equipment at its cost.
The Adelaide offer discussed is 28 cents per kilowatt-hour, available 24 hours a day, seven days a week.
The electricity rate is intended to remain fixed for 10 years, with no CPI increase according to Tesseract.
The company said it has completed a 60-customer pilot in Adelaide and plans to expand to 3,000 homes by the end of the next year, as stated in the interview.

A service model for households without solar

Tesseract Energy presented Tesseract ZERO as a virtual power plant for homes. Rather than requiring a household to purchase a complete solar and battery system upfront, Tesseract said it will invest in the customer’s home and install the equipment at its own cost.

The company’s stated target is Australian households that do not have solar or batteries, including people who may be deterred by the upfront expense or by concerns about maintaining the technology. The arrangement is intended to work more like buying electricity from an energy provider, while using equipment installed at the customer’s property.

Fixed-price electricity offer

Chong from Tesseract said the Adelaide offer discussed at the expo was 28 cents per kilowatt-hour, available around the clock. He compared this with electricity prices of approximately 55 or 56 cents per kilowatt-hour for some customers, claiming potential savings of about 50 per cent on usage. The comparison was presented in the interview and may depend on the customer’s existing tariff and usage.

A central feature of the proposal is a 10-year fixed electricity price. Tesseract said the rate would not be subject to CPI increases and contrasted this with energy retailers, which it said generally do not fix prices for more than a year. The video did not provide a full electricity bill comparison, including supply charges, export arrangements or other contract conditions.

Solar, battery and maintenance included

Tesseract said the standard offer could include a 20-kilowatt-hour battery and 6.6 kilowatts of solar, supported by government battery rebates. The company said this combination is intended to help cover household energy use, including at times when solar generation is unavailable.

The service is also intended to address concerns about equipment faults and future costs. According to Tesseract, the company would maintain the system during the 10-year period, so a customer could contact it if the inverter or another part of the system developed a problem. Specific response times, exclusions and warranty terms were not detailed in the interview.

What happens after 10 years?

At the end of the 10-year agreement, Tesseract said customers would have two options. They could end the programme, receive the solar panels at no cost and have the battery removed. Alternatively, they could purchase the battery at a discounted price.

The interview did not specify the battery’s future price, the condition of the equipment at that point, or whether the customer would need to enter a new electricity arrangement after the original term. These details would need to be confirmed in the final customer contract.

Pilot and planned expansion

Tesseract said it had completed a pilot project in Adelaide involving 60 customers. The company plans to launch an offer for 3,000 homes by the end of the next year, as described in the interview, with expansion into New South Wales, including Sydney and the Central Coast, as well as South Australia.

Western Australia was also identified as a future target, although Tesseract said it would first need to establish local partnerships and understand customer requirements in that market. The company said it expects its offer to remain available as government battery rebates decline, supported by technology and original equipment manufacturer partnerships intended to reduce its costs.

TechManPat’s conclusion

I think Tesseract ZERO is an interesting approach because it combines solar, battery storage, maintenance and a long-term electricity rate instead of asking households to fund the whole system upfront. The fixed 10-year price is the most distinctive part of the offer, but I would want to see the complete contract, charges and post-10-year arrangements before judging how attractive it will be for different homes.

Source note

This knowledge-centre summary is based on the linked TechManPat video and reflects the information available when it was published. Check current pricing, availability and policies before acting.