What Was Announced
Sunollo has signed a strategic Memorandum of Understanding (MoU) with Sigenergy, the AI-powered battery storage, solar and EV charging solutions provider, at SNEC 2026 in Shanghai — the world's largest solar and energy storage trade fair. The agreement establishes a framework for the two companies to collaborate on integrated solar PV, battery energy storage, EV charging and AI-powered energy management for homes and small businesses in Singapore.
Tony Xu, CEO of Sigenergy, said: "Singapore is one of the region's most sophisticated energy markets, and customers here are increasingly looking for solutions that go beyond standalone hardware. By combining Sigenergy's AI-powered energy platform with Sunollo's local market understanding and customer focus, we see a strong opportunity to deliver a smarter, more integrated energy experience in Singapore."
The two companies intend to evaluate opportunities spanning residential and small commercial deployments, channel development, customer education, and future localised offerings for Singapore. For Sunollo, the partnership reinforces its $0-upfront, monthly-payment model — making it easier for homeowners to add battery storage without a large capital outlay. Coverage of the announcement: EV Infrastructure News.
Who Is Sigenergy? From Startup to the World's #1 Home Battery Brand in Four Years
Sigenergy was founded in 2022 by Tony Xu, who spent 23 years at Huawei, including nearly a decade as President of Huawei's Smart PV (FusionSolar) division. In under four years, Sigenergy has gone from a Shanghai startup to a global category leader:
| Metric | Figure | Source |
|---|---|---|
| Founded | 2022, Shanghai, China | Company records |
| Global market share — stackable all-in-one home battery systems | 28.6% (#1 worldwide, 2024 shipments) | Frost & Sullivan |
| #1 battery brand by market share | Australia, Ireland, South Africa | SunWiz |
| 2025 revenue | ~RMB 9 billion (~US$1.25B) | IPO prospectus / Caixin |
| 2025 profit | ~RMB 2.9 billion | IPO prospectus / Caixin |
| Share of 2025 revenue from international markets | ~99% | Company disclosure |
Sigenergy's flagship product, the SigenStor, is a "five-in-one" system combining a solar inverter, battery, storage converter, EV charger and energy management system in a single integrated unit — the same category of product behind Sunollo's Abundance Pro package. Sigenergy has held the #1 position for blended battery capacity in Australia for ten consecutive months and works with distributor and installer networks spanning more than 60 countries.
The IPO That Confirmed What the Market Already Knew
On 16 April 2026, Sigenergy listed on the Hong Kong Stock Exchange (HKEX: 6656) — becoming the first "AI + integrated PV-storage" stock on the exchange, and the fastest mainland Chinese company ever to reach an HKEX listing from founding (under four years). The numbers were extraordinary:
- Raised HK$4.4 billion (US$562 million) at an IPO price of HK$324.20 per share
- Shares surged 103% on debut, closing at HK$659.50
- Implied valuation of roughly HK$162.8 billion (US$20.8 billion)
- The public offering was oversubscribed over 1,100 times
- Cornerstone investors included Temasek, Goldman Sachs Asset Management, Hillhouse (the company's largest external shareholder pre-IPO) and UBS Asset Management
Sources: Reuters, Energy-Storage.News.
For Singapore homeowners, this matters practically, not just as a headline: it means Sunollo's battery partner is a well-capitalised, publicly listed, independently verified market leader — not an unproven startup betting on a single market.
Why Sunollo Chose Sigenergy
Sunollo already offers Sigenergy's SigenStor technology as part of its battery storage lineup. The formal MoU deepens that relationship into a structured partnership covering:
- AI-powered energy management — the system automatically shifts consumption to the cheapest available electricity (solar first, battery second, grid last), which matters more than ever with Singapore's electricity tariff at a record high.
- Integrated solar + battery + EV charging — one system instead of three separately-sourced components, reducing installation complexity and points of failure.
- A proven, bankable supply chain — a publicly listed manufacturer with global scale reduces long-term risk around parts, firmware support and warranty honouring, addressing a common homeowner concern covered in our guide to choosing a solar company in Singapore.
- Accessible adoption — combined with Sunollo's $0-upfront, monthly-payment model and SunolloCare coverage, battery storage becomes achievable without a large upfront cost.
What This Means for Singapore Homeowners
Sunollo and Sigenergy intend to bring intelligent, integrated home energy — solar, battery storage, EV charging and AI energy management in one system — to tens of thousands of Singapore homes in the years ahead, starting with landed residential and small commercial properties. This comes at the right moment: with the electricity tariff up 17% to a record 31.91 cents/kWh from July 2026, a home battery is no longer a luxury add-on — it is the difference between being fully exposed to grid volatility and being able to store cheap self-generated solar power for use whenever you need it, including during outages.
To see the economics for your home, read our guides on solar battery storage in Singapore, home battery storage costs and brands, and bundling solar, battery and EV charging for maximum savings.
Explore Sunollo's home battery storage packages →
Frequently Asked Questions
What did Sunollo and Sigenergy announce?
Sunollo and Sigenergy signed a strategic Memorandum of Understanding (MoU) at SNEC 2026 in Shanghai to collaborate on integrated solar PV, battery energy storage (BESS), EV charging and AI-powered energy management for homes and small businesses in Singapore.
Who is Sigenergy?
Sigenergy is a Shanghai-based energy storage company founded in 2022 by Tony Xu, former President of Huawei's Smart PV division. It is the world's #1 stackable all-in-one home battery brand by shipments (28.6% global market share) and the top brand in Australia, Ireland and South Africa. Sigenergy listed on the Hong Kong Stock Exchange (HKEX: 6656) in April 2026.
How big was Sigenergy's IPO?
Sigenergy raised HK$4.4 billion (US$562 million) in its April 2026 Hong Kong IPO. Shares surged 103% on debut, valuing the company at roughly HK$162.8 billion (US$20.8 billion). Cornerstone investors included Temasek, Goldman Sachs Asset Management, Hillhouse and UBS Asset Management.
What is the SigenStor?
The SigenStor is Sigenergy's flagship "five-in-one" energy system, integrating a solar inverter, battery, storage converter, EV charger and energy management system into a single unit. It is available through Sunollo as part of its home battery storage packages.
How many homes will this partnership reach in Singapore?
Sunollo and Sigenergy aim to bring integrated solar, battery and EV charging solutions to tens of thousands of Singapore homes over the coming years, starting with landed residential and small commercial properties. No fixed unit target has been publicly specified.
Why does this matter given rising electricity tariffs?
Singapore's household electricity tariff rose 17% to a record 31.91 cents/kWh from July 2026. Pairing solar with a Sigenergy battery lets homeowners store self-generated power and use it when electricity is most expensive or unavailable, reducing exposure to further tariff increases.
