Ofgem rules
Also covers: Renewable Heat Incentive; CHP Quality Assurance; Energy Trilemma Net Zero.
Environmental and savings claims must be specific and evidenced (CMA Green Claims Code).
Source: Ofgem
What your website and marketing must show to stay compliant in energy
The rules that apply to a UK energy business, turned into what your site, ads and social posts must show, or must not say. Each point links to the regulator or the legislation it comes from.
General guidance, not legal advice. Rules change and depend on your circumstances; check the linked source or take advice from a qualified adviser before relying on any point.
Energy rules
REGO scheme
"100% renewable" claims must be backed by the certificates; follow the CMA Green Claims Code.
Climate Change Levy
Savings claims about the levy must be evidenced.
Source: Climate Change Levy
ESOS Phase 3
Describe ESOS deadlines and who qualifies accurately.
MCS certification
Show your MCS number; customers need an MCS installer for the Smart Export Guarantee and the Boiler Upgrade Scheme.
Boiler Upgrade Scheme installer guidance
Describe the grant accurately and do not imply you set or guarantee it.
Source: Boiler Upgrade Scheme
RECC or HIES consumer code
Show consumer-code membership and follow its sales and advertising rules.
Source: Consumer codes (RECC / HIES)
Smart Export Guarantee
Do not quote export earnings as certain; tariffs vary by supplier.
Source: Smart Export Guarantee
Building Regulations Part P and Part L
Say which work you self-certify through a competent person scheme, and name the scheme, rather than implying sign-off you cannot give.
FCA consumer credit broking
Financial promotions must be fair, clear and not misleading, show your FCA status (or your principal's, for appointed representatives) and carry the required risk warnings.
Every UK business site
Whatever the sector, these apply to almost every business website.
Company and trading details
A limited company's site must show its registered name, company number, place of registration and registered office address.
Source: Company and trading details
Privacy notice
Say who you are, what each form collects, why, how long you keep it and how people use their rights.
Source: Privacy notice
Cookie consent
Non-essential cookies and analytics wait for consent, and refusing is as easy as accepting.
Source: Cookie consent
Honest claims
Every claim, review and comparison is true, evidenced and not misleading (CAP Code).
Source: Honest claims
Genuine reviews
No fake, bought or selectively hidden reviews (DMCC Act 2024).
Source: Genuine reviews
Sector context
Recent changes in the sector that affect what your marketing should say, from the sources linked.
- BUS installer guidance v5.2 (Ofgem, October 2026); MCS-linked installer definition for applications from 28 April 2026 (source)
- Ofgem v5 summary: RECC or HIES membership still required for BUS 'until further notice' (source)
- DESNZ recognises the redeveloped MCS scheme for BUS consumer protection (source)
- ESOS Phase 4 qualification date 31 December 2026; compliance notification due 5 December 2027; DECs and GDAs no longer compliance routes (source)
- SIC 2007 code definitions (source)
See how your site measures up
The free grader checks your site against the visible signals buyers, search engines and AI assistants look for, including several of the points above.
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