Alpha ESS Smile G3 8kW Hybrid Inverter
Sold by City Plumbing
View at City Plumbing ↗ You buy from the vendor, not from us.
What we checked
A rooftop system is a fixed installation notified under G98 or G99. MCS certification of the product and the installer is separate, and is what a supplier requires before paying an export tariff under the Smart Export Guarantee. Nothing in SI 2026/848 applies here. What we can check from a published specification is whether the equipment appears on the register that does govern it.
- Appears on the ENA register — PassesMatched to Connect Direct entry ALPHA/17646/V1, registered by Alpha ESS as “SMILE-G3-S8-INV”. Presence on the register is a fact about the register; it is not our endorsement.
Price history
| Seen | Price | In stock |
|---|---|---|
| 29 Aug 2026 | £1,218.00 | not stated |
The kit
Image: City Plumbing. Reproduced to identify the product being compared; all rights remain theirs. If you are the vendor and would rather we used a different shot, or none, tell us and we will change it.
Specification
| AC output | 8,000 W |
|---|---|
| Price | £1,218.00 |
| Price per AC watt | £0.15/W |
12 fields the vendor has not published
- Panel peak output, DC
- Panels in the kit
- Mounting
- Inverter make
- Inverter model
- Battery included
- Battery capacity
- In stock
- Warranty
- Plug type
- Fuse rating
- Vendor offers finance
Blank because the vendor has not stated it, not because we have not looked. We do not fill a gap with an estimate — if you need one of these, ask them, and tell us what they say.
ENA register entry
| System reference | ALPHA/17646/V1 |
|---|---|
| Manufacturer | Alpha ESS |
| Model as registered | SMILE-G3-S8-INV |
| Device type | Energy Storage Device |
| Registered capacity | 8 kW |
| Published | 19 May 2025 |
Our page for this register entry → · View it on ENA Connect Direct ↗