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Alectrona

Independent Solplanet installer · Yorkshire and the East Midlands

Solplanet hybrid inverters and batteries for single-phase homes.

Single-phase Solplanet hybrids from 3.68 to 10 kW, with Ai-LB-G3 batteries stacked 5.12 kWh at a time.

We fit the part of the Solplanet range that an authorised UK distributor stocks: the ASW H-S2 and SH hybrid inverters, the Ai-LB-G3 battery and the S-G2 string inverters. We are an independent installer, not appointed by Solplanet. Your quote names the exact models, and we make any warranty claim to Solplanet for you.

Free survey. A fixed, itemised quote. No deposit on a promise.

Get a Solplanet quote Which setup suits your home
  • Independent installer, not appointed by Solplanet
  • Bought from an authorised UK distributor
  • Hybrids on the ENA Type Test Register
  • 0% VAT to 31 March 2027
Solplanet at a glance
  • 3.68 to 10 kW Single-phase hybrids we fit ASW H-S2 and ASW SH
  • 5.12 kWh Per Ai-LB-G3 battery module 4.86 kWh usable on the datasheet
  • 10 ms Switch to backup or less, on the hybrids we fit
  • 0% VAT On the install until 31 March 2027
01 Who makes Solplanet

A residential inverter maker with an SMA past. Solplanet is the overseas brand of AISWEI Technology, based in Shanghai.

AISWEI, formerly Zeversolar, was owned by the German inverter maker SMA from 2013 until a management buyout in 2019, and launched Solplanet the following year. Homes are its core business. Wood Mackenzie ranked it first in the world for residential string inverter shipments in 2024, and its products are built at its own plant in Yangzhong, China.

The H-S2 hybrids take one and a half times their rating in solar panels, and the SH takes twice its rating. The Ai-LB-G3 battery is rated IP66, so it can live in a garage or on an outside wall. When the grid goes down, the backup output takes over in 10 milliseconds or less. The hybrids we fit are all on the ENA Type Test Register for connection to the UK grid.

Solplanet has no UK-registered company: UK support is a phone line and email, and the factory warranty is written by AISWEI and covers equipment bought from AISWEI or one of its authorised distributors. That is why we only buy Solplanet from an authorised UK distributor, and why our engineering team makes any warranty claim to Solplanet for you.

02 Which setup suits your home

Three ways to fit Solplanet, depending on the house.

All three are for a single-phase supply, which is what most UK homes have, and we confirm yours at survey. Which one we recommend depends on your roof and on whether you want a battery now or later.

Recommended Most homes

ASW H-S2 hybrid with Ai-LB-G3 batteries

A 3.68, 5 or 6 kW hybrid inverter running the solar and the battery together, with backup outlets for a power cut. The battery is an Ai-LB-G3 stack, or a third-party battery on Solplanet’s compatibility list such as Pylontech.

  • Two MPP trackers, so two roof faces each run at their best
  • Up to 9 kWp of panels on the 6 kW model
  • Battery charge and discharge up to 5 kW on every size
  • Backup at 5 kVA (about 5 kW of appliances), with 7.5 kVA for ten seconds to start a load
Larger homes

ASW SH hybrid, 8 or 10 kW

The bigger single-phase hybrid, for a large array, heavy evening use or an electric car on the same supply. It is not named in Solplanet’s published warranty terms, so we get its term in writing before we quote it.

  • Three MPP trackers and up to twice its rating in panels
  • Inverter rated to charge and discharge at its full rating; the battery stack can set a lower limit
  • Backup up to its full rating where the battery stack can supply it, with twice that for ten seconds
  • A generator input, and up to three units on one phase
Solar only

ASW S-G2 string inverter

A solar-only inverter with no battery port, for a straightforward array where storage is not wanted yet.

  • Sizes from 1.5 kW, with panels up to one and a half times its rating
  • Up to 98.2% efficient on the 3 to 6 kW models
  • Export limiting through a meter where the network needs it
  • A battery can be added later, with its own inverter wired alongside

Figures are from Solplanet’s current datasheets. The exact model and battery are set in your quote after the survey. New panels need an install certified under MCS to earn Smart Export Guarantee payments; we are completing our MCS accreditation and confirm at survey when your install can be SEG-eligible.

Three Solplanet inverters side by side: the ASW H-S2 hybrid, the taller ASW SH hybrid and the ASW S-G2 string inverter
Left to right: the ASW H-S2 hybrid, the ASW SH hybrid and the ASW S-G2 string inverter. Not to scale.
03 The battery

Ai-LB-G3: stackable modules, rated for a garage or an outside wall. Low-voltage lithium iron phosphate, built to pair with the Solplanet hybrids.

Each Ai-LB-G3 module holds 5.12 kWh, of which the datasheet counts 4.86 kWh as usable, and modules stack on a common base so capacity is set by how many you fit. The cells are lithium iron phosphate, the enclosure is rated IP66 for indoor or outdoor mounting, and every module carries its own aerosol fire suppressor. The battery is certified to IEC 62619 and IEC 63056, the safety standards for lithium batteries in industrial use and in energy storage systems, and is rated for 6,000 cycles at 90% depth of discharge before its capacity falls to 70%.

The hybrids are also approved with third-party low-voltage batteries on Solplanet’s compatibility list, including Pylontech models, and Dyness models for the H-S2, so the battery is a choice we make with you rather than one forced by the inverter.

Solplanet’s current battery terms give the Ai-LB-G3 ten years, written either as a straight ten or as five plus five, and cover ends sooner if the battery reaches the total energy those terms allow it to store and release. In any extended period the terms cover parts or a replacement only, with no shipping; a fault has to be reported within a week; and the terms do not pay travel or accommodation for a site visit. Your quote states which form applies and shows the daily cycling we have designed for against that limit, and we register the warranty at commissioning.

How retrofit battery storage works
A Solplanet ASW H-S2 hybrid inverter beside a stack of three Ai-LB-G3 battery modules

An ASW H-S2 hybrid beside an Ai-LB-G3 stack on its base. The module count comes from your usage; a wall-mounted stack takes three modules at most.

Boughtwherethewarrantyholds.

Stacked5.12kWhatatime,toyourusage.

Named,modelbymodel,inyourquote.

05 What we add to the box

Solplanet has no UK company, so we make the warranty claim as well as the fit.

These are the parts of a Solplanet install that are ours to get right.

Bought where the warranty applies

AISWEI’s factory warranty covers equipment bought from AISWEI or an authorised distributor, so we buy from an authorised UK distributor, get the term for your exact models in writing, and register every unit at commissioning.

G98 or G99, set by the model and your supply

On a supply with no other generation, the 3.68 kW H-S2 comes under G98, so we notify your network operator after switch-on. The 5 and 6 kW H-S2 and both SH models come under G99, and fitted at full output they need the network operator’s approval before we install them. Solar inverters or batteries already on your supply count towards the G98 limit of 16 A per phase (3.68 kW), so we check at survey.

ArcBox on every man-made MC4

The connectors crimped on the roof are a common failure point across the UK installed base, so every man-made MC4 on a Solplanet job is sealed in an ArcBox enclosure.

06 How a Solplanet install runs

Four steps, from survey to switch-on. You see the models and the design first. We handle the network operator.

  1. Survey

    Free survey

    We look at the roof, the consumer unit and the supply, and at how and when you use power, including anything heavy you run in the evening.

    Free · On site

  2. Design

    Named models, fixed quote

    A design with the inverter, the battery and every other component named, and a fixed, itemised quote at 0% VAT.

    Set out in writing

  3. Network

    Grid notification or application

    A G98 install is notified after commissioning. A G99 install, including the 5 and 6 kW H-S2 and both SH models at full output, is applied for and approved before we fit it. That adds time, and we tell you how much up front.

    G98 or G99

  4. Switch-on

    Install, commission, hand over

    We fit and commission the system and register the warranty. Before we leave, the Solplanet app is set up on your phone, showing what the panels make and what the battery holds.

    Usually 1 to 2 days on site

Drone view of a new-build house roof with black in-roof solar panels on two faces and a garage roof
An in-roof array on a new build, across two faces of the house and the garage roof. The H-S2 has two MPP trackers and the SH three, so the number of roof faces is one of the things that decides between them.
07 FAQ

Solplanet at home: common questions

We do not publish a price list, because the inverter size, the battery and the panels all come from your survey. You get a fixed, itemised quote at 0% VAT until 31 March 2027, with every Solplanet model named, and the price you are quoted is the price you pay.
Usually one to two days on site once the design is approved. A system that needs a G99 application waits for the network operator’s approval before we fit it, and we tell you at the design stage whether yours does, so the wait is known before you commit.
Yes, for the circuits wired to the hybrid’s backup output: they switch over in 10 milliseconds or less and stay on while the battery has charge. The H-S2 backs up 5 kVA; the SH is rated for its full 8 or 10 kVA, though from the battery alone it is limited by what the stack can deliver. We agree with you which circuits go on it, and the rest of the house goes off with the grid.
Yes, within limits. Ai-LB-G3 modules stack on a common base, and we leave room for more where you tell us it is likely. A wall-mounted stack takes three modules at most; Solplanet’s own documents currently give different maximums for a floor-standing stack, so we confirm the limit for your hybrid, and any rules on adding new modules beside older ones, against Solplanet’s current documents before we order.
Not in itself, but SEG payments need the installation to be certified under MCS, and that cannot be added afterwards. The MCS battery standard asks for a G98 or G99 type-tested inverter, which the Solplanet hybrids we fit are, and for a battery install we confirm at design that your network operator accepts the model as registered. We are completing our MCS accreditation now and confirm the timing for an SEG-eligible install at your survey.
Us. We hold the monitoring access, diagnose the fault and deal with Solplanet on your behalf, including the warranty claim. Solplanet has no UK company, so the claim goes through us to its UK service line, and we tell you what its terms cover before we make it.
For solar only, yes, with Solplanet’s three-phase string inverters. For solar with a battery, we have not found a UK stockist of Solplanet’s three-phase hybrids, so we specify a different maker and tell you why.

For a business rather than a home, our commercial Solplanet page covers the three-phase string inverters from 50 to 110 kW.

Last updated September 2026

Get a Solplanet quote

A single-phase Solplanet system, every model named in your quote.

Tell us about your roof and how you use power. Your quote names every model, and we tell you plainly if another maker suits your home better.

  • Free survey and a documented design
  • 0% VAT on the install (to 31 March 2027)
  • Bought from an authorised UK distributor
  • No deposit on a promise