UK SIC 2007 · 35110
Production of electricity
Production of electricity is UK SIC code 35110, part of division 35 (Electricity, gas, steam and air conditioning supply) in the SIC 2007 classification. As of the July 2026 Companies House register, 10,995 active UK companies list 35110 among their SIC codes, and 10,673 list it as their first code. That makes it the most used code in its division.
As of the July 2026 Companies House register, 10,995 active UK companies list 35110 among their SIC codes (10,673 as their first code).
Companies House data refreshed daily. Page reviewed July 2026.
Division 35: Electricity, gas, steam and air conditioning supply
On paper this division is the utilities sector; on the UK register it is largely a collection of energy project vehicles. The busiest code, 35110, production of electricity, is packed with special purpose companies holding solar farms, wind turbines, battery storage sites and hydro schemes, each asset often incorporated separately for financing reasons. Trade of electricity, 35140, captures licensed suppliers and power purchase intermediaries. Gas, steam and air conditioning supply codes exist here too but carry far fewer registrations.
Because so many companies here are single-asset vehicles, professional services dominate the prospecting: accountants and company secretarial providers administer portfolios of SPVs and win work whenever new vehicles incorporate, which tracks renewable development activity closely. Legal advisers, insurance brokers covering energy assets, and operations and maintenance contractors watch the same formations. A cluster of new incorporations sharing directors or an address usually signals a developer building out a pipeline, worth approaching once rather than vehicle by vehicle. Filing deadlines matter across whole portfolios at once, a useful hook for compliance services.
Related SIC codes
35140, Trade of electricityWho uses this code in B2B outreach
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Where SIC 35110 clusters in the UK
About SIC 35110
How many UK companies use SIC code 35110?
10,995 active UK companies include 35110 (Production of electricity) among their up-to-four registered SIC codes, of which 10,673 list it first. Figures are from the July 2026 Companies House register snapshot, counting active companies only.
Which SIC code should a company set up to own a solar installation use?
35110, production of electricity, is the standard choice for generation assets of any technology, including solar, wind, hydro and battery-backed generation. Companies that buy and resell power rather than generating it fit 35140. Developers sometimes also list a construction or project development code during the build phase. The company chooses freely and may revise codes on each confirmation statement as the project moves from construction to operation.
Do all the SPVs in an energy portfolio need the same SIC code?
No rule requires it, but consistency helps. Each company declares its own codes independently at incorporation, and there is no group-level classification. Most developers standardise on 35110 for generation vehicles so lenders, insurers and counterparties can read the portfolio at a glance. If an acquired vehicle carries a legacy code, it can be aligned on its next CS01 confirmation statement without any approval process.
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