Last checked 29 October 2026 · next check 29 November 2026. Changelog — 29 October 2026: Neo datasheets, manuals, specification page and Europe warranty cover now published (two of four conditions met); still no UK price, release date or Neo at the three UK stockists we could read. Changelog — 16 September 2026: first published; Sigenergy’s Neo page URL has moved to /en/product/sigenstor-neo; four UK stockists and distributors re-checked today, none lists a Neo.
The short answer, as of 29 October 2026: the SigenStor Neo now has its paperwork, but we still cannot find a UK price, a UK release date or a UK stockist listing it. Sigenergy’s datasheets, specification page and Europe warranty now let an installer specify a Neo on paper. If you are weighing up home battery storage now, our Sigenergy SigenStor page sets the Neo beside the original.
What Sigenergy has said, in date order
- 13 March 2026. The Neo was shown at the opening of Sigenergy’s Nantong Smart Energy Center. The most detailed public account is from PSW Energy, a Perth installer that attended, published on 9 April 2026.
- 24–25 June 2026. Sigenergy’s newsroom, datelined Munich: the company was “globally launching” its home energy ecosystem at Intersolar Europe 2026. The Neo integrates “the inverter, battery, PCS, EMS, and gateway” into one unit, supports “up to six vertically stacked battery modules”, offers “0ms load-side disruption and 200% peakpower output capacity”, carries “8-layer protection”, and has both a Smart Port and a Backup Port. No country list, dates or prices.
- 3 July 2026. A press release from Shanghai: Sigenergy “announced the global rollout of SigenStor Neo” and “SigenStor Neo is available globally”. It names no UK channel, price or date. “Available globally” is a corporate statement, not a stock position — and so far it has been implemented country by country.
- 28 August 2026. A country launch at the Capella Bangkok, where Sigenergy “announced official product pricing” for Thailand; the figures were not published. We have found no equivalent for the UK or Europe.
What Sigenergy has now published, and what is still missing
Published (read 29 October 2026)
- Datasheets, manuals and a flyer. Sigenergy’s Neo download page lists datasheets for the Neo Energy Controller (EC) and BAT 6.0/8.0 battery modules, a flyer, single-phase (2.5–12.0) and three-phase (3.0–15.0) installer manuals and a user manual, with “Last Updated” dates of 21 September 2026 (EC datasheet), 12 October (battery), 9 October (flyer) and 7 September (manuals) — not necessarily first-publication dates. The Neo product page we read on 16 September linked to none of them.
- A specification page with figures (next section).
- A German grid certificate for the three-phase Neo, against the German standard DIN VDE V 0124-100 (Last Updated 27 October 2026). It is not a UK G98 or G99 certification.
- Europe warranty cover. The English Factory Limited Warranty for SigenStor (For Europe) on Sigenergy’s warranty page (footer dated 11/07/2026, uploaded 8 October 2026) now lists Neo BAT 6.0/8.0 modules and Neo Energy Controllers EC 2.5 to 12.0 single-phase, EC 3.0 to 15.0 three-phase and EC 2.5 to 6.0 “SE SP”, each at 10 years, beside the original models. Performance terms match for both: 60% of usable energy for ten years from initial installation, or a stated minimum throughput, whichever comes first. The 27 May 2025 version we read on 16 September listed no Neo.
Still missing for a UK buyer (checked 29 October 2026)
- A UK price or release date. We found neither, on Sigenergy’s pages or in a web search. We have found no UK or Europe launch with pricing; Thailand’s (28 August 2026) is still the only country launch with pricing we know of.
- A Neo at UK stockists. Searches for “sigenstor neo” at qualityheating.co.uk, powerland.co.uk and rapidrenewables.co.uk listed no product with “Neo” in its title; Midsummer Wholesale’s search could not be read that day, so we make no claim about it. On 14 September those three listed 45, 72 and 18 Sigenergy products, none a Neo.
Why the specifications you see online disagree
When we first wrote this page, the Neo’s only kW and kWh figures came from unofficial accounts, chiefly PSW Energy’s 9 April 2026 write-up, which warns its data is “compiled from launch event coverage based on manufacturer presentations, not independent lab testing or published datasheets”. Sigenergy’s specification page (read 29 October 2026) now settles the headline numbers:
- Energy Controller output of 2,500–12,000 W single-phase and 3,000–15,000 W three-phase, on-grid and backup alike.
- One to six battery modules per controller: LiFePO4, 6.02 kWh (BAT 6.0) or 7.52 kWh (BAT 8.0) total energy capacity, floor-standing or wall-mounted, IP66.
- 63 A maximum AC passthrough (grid to load), and 63 A maximum current in or out of the Smart Port.
Against the earlier numbers:
- Confirmed: 2.5–12 kW single-phase, 3–15 kW three-phase, up to six modules, and 63 A, which launch coverage called an integrated backup switch and Sigenergy publishes as the maximum passthrough.
- Corrected: the “8 kWh” module is 7.52 kWh (the “6 kWh” one 6.02 kWh), so a later Australian source’s figure of up to 48 kWh in a stack comes to 45.12 kWh on our arithmetic (six 7.52 kWh modules); one Australian comparison site’s 6.0 and 10.0 kWh “Neo modules” do not match Sigenergy’s BAT 6.0 and BAT 8.0.
- Not confirmed by us: 0.8C charging (against the original’s 0.5C), the “cell suspension” thermal design, and a temperature sensor at every terminal; treat these as launch coverage. Generator connection is shown on Sigenergy’s own Neo page (“Connect to a generator”), but its specifications page gives no generator figures.
What is genuinely new, and what is not
Three of the Neo’s headline numbers are already on the current datasheets for the original SigenStor: “Disruption time of backup switch: 0 ms” (with the Sigen Energy Gateway, under Sigenergy’s stated test conditions), “200% peak output power in off-grid mode”, and a “battery optimizer inside, mix old and new”. Those are not differences.
The differences Sigenergy itself has put in writing are the backup function integrated into the unit rather than a separate Gateway, the Smart Port plus Backup Port, 8-layer rather than 5-layer battery protection, and Sub-1G radio communications.
What the Neo appears to give up is the DC EV charging module: PSW lists DC charging as “to be confirmed”, The Solar Guide in Australia says DC fast charging is “exclusive to the original SigenStor”, and Sigenergy’s Neo product page, read in September, paired it with the AC-charging Sigen EVAC. The original’s EVDC module is rated at 12.5 or 25 kW on a CCS2 connector.
The UK questions nobody overseas can answer
Grid connection. Every grid-tied inverter in Great Britain connects under the Energy Networks Association’s EREC G98 or G99 (both Issue 2, 10 March 2025), decided by its AC rating per phase, not battery size. G98 covers type-tested equipment up to and including 16 A per phase (3.68 kW single-phase, 11.04 kW three-phase) and is connect-and-notify: the installer informs the network operator within 28 days of commissioning. Above that line G99 applies and is apply-first, before installation. Most of the Neo’s published single-phase range, 2.5–12 kW, is on the G99 side, as are the original’s 4.0–12.0 kW single-phase controllers; only sizes up to 3.68 kW could use G98, and only as type-tested equipment. The German certificate above is not a G98 or G99 certification, and we have not checked the ENA type-test register for the Neo, so we make no claim either way.
The Smart Export Guarantee. A battery is not itself an SEG-eligible technology, and the Energy Saving Trust (updated 20 May 2026) notes suppliers “don’t have to pay you for non-renewable electricity exported to the grid”. Whether grid-charged energy discharged from a SigenStor is paid for depends on the supplier’s tariff terms; we do not promise a rate.
What would change the verdict: status on 29 October 2026
We said any one of four things would change the verdict. Two have happened; two have not.
| Condition | Status on 29 October 2026 |
|---|---|
| A Neo datasheet on sigenergy.com | Met: two datasheets, plus a specification page with figures |
| Neo model numbers in the Europe warranty | Met: four Neo entries, each at 10 years |
| A Neo SKU at a UK distributor | Not yet at the three UK stockists we could read |
| A UK or Europe launch with pricing | Not found: Thailand (28 August 2026) is still the only country launch with pricing we know of |
When either unmet condition changes, we will say so here, dated and linked, and still not quote lead times or stock we have not seen.
If you are choosing now
Both generations now have published datasheets and Europe warranty cover; as far as we can find, UK supply is the gap. Stockists here listed the original SigenStor when we counted in September; on 29 October none of the three we could search listed a Neo, and we found no UK Neo price or release date. Wait for the Neo only if you need whole-home backup without a separate Gateway, the Smart Port for adding storage to an existing third-party inverter, or a direct generator input (still unconfirmed). For DC EV charging, the original is the only SigenStor that offers it. If you are weighing the original SigenStor against another modular system, our EcoFlow vs Sigenergy comparison sets the published figures side by side, and the EcoFlow PowerOcean page covers that system on its own.
We can now compare either against your real consumption on Sigenergy’s published figures; the SigenStor Neo UK comparison on our Sigenergy page sets them side by side. The battery system in HCE’s own job photos is EnSmart; if a SigenStor is the system you want, ask us and we will confirm in writing how it would be supplied, who installs and commissions it, and what warranty attaches — and we will still tell you if a smaller system, or no battery at all, is the better answer. If you are not set on a SigenStor, start with our EnSmart battery page.
Sources read 29 October 2026: Sigenergy’s SigenStor Neo download and specifications pages, and its warranty page with the “SigenStor Warranty Europe (English)” document (footer dated 11/07/2026); “sigenstor neo” site searches at qualityheating.co.uk, powerland.co.uk and rapidrenewables.co.uk. Earlier: Sigenergy’s SigenStor Neo product page and 27 May 2025 Europe warranty (read 16 September 2026), 25 June 2026 newsroom post, and Energy Controller (version 20260330), Battery and EV DC Charging Module datasheets; GlobeNewswire, Sigenergy press releases of 3 July and 28 August 2026; PSW Energy, 9 April 2026; The Solar Guide (Australia), 1 June 2026; Sigenergy listings at the four UK stockists named above (14 and 16 September 2026); ENA EREC G98 and G99, Issue 2 (10 March 2025); Ofgem, GOV.UK (1 January 2020) and Energy Saving Trust (updated 20 May 2026) on the Smart Export Guarantee.