Tidal energyLSE: SAE

SIMEC Atlantis Energy

46Mixed / Improving

Edinburgh, United KingdomFounded 20050 followers

simecatlantis.com/

Developer and operator of tidal stream energy projects, owning the 6 MW MeyGen array in the Pentland Firth — the world's largest operational tidal stream installation — with CfD contracts for 59 MW of further expansion.

Green Score

46/100
Mixed / Improving
Greenwashing risk
medium
Data confidence
medium
Method
how it is calculated
Climate Impact & Solution35%72

Does the core business genuinely avoid or reduce emissions, or build climate resilience? Share of revenue that is actually 'green'. Fossil-dependent models score low.

The MeyGen Phase 1 array delivers 6 MW of genuinely zero-carbon, highly predictable tidal stream power, with 51 GWh of cumulative generation by March 2023 and a consented pathway to 398 MW; the core product is unambiguously climate-positive, but the installed base remains tiny (6 MW operational) relative to ambition and the 59 MW expansion is still years from delivery.

Decarbonization & Targets20%18

Credible, science-based targets (SBTi), a real net-zero plan with progress to date, and CDP disclosure — not just a dated press release.

No evidence of SBTi-validated targets, CDP disclosure, or a published net-zero roadmap with quantified milestones could be found; the company's public statements reference a commitment to 'net zero' only at a high marketing level, with no independently verified science-based pathway.

ESG & Operations15%38

Operational footprint, labour and social practices, and governance quality across the company's own operations and supply chain.

The company operates a small, specialist renewable energy workforce with no documented labour controversies, but its operational ESG footprint is poorly disclosed; the legacy GFG Alliance majority ownership linkage, the failed Uskmouth coal conversion project, and the absence of a standalone sustainability report materially weaken its ESG profile.

Transparency & Verification15%32

Quality of disclosure, independent third-party verification, and how much hard data backs the company's claims.

Annual reports are publicly filed on AIM/London Stock Exchange, and production data (GWh generated) is periodically disclosed in RNS announcements, but there is no standalone sustainability or ESG report, no CDP submission identified, and no third-party verification of environmental claims beyond the government-regulated CfD framework.

Integrity15%42

Controversies, litigation, pollution, fossil-fuel lobbying, conflict-zone involvement and governance scandals. Higher means cleaner.

Significant governance overhang from GFG Alliance (majority shareholder investigated by the UK Serious Fraud Office for suspected fraud, fraudulent trading, and money laundering), share price collapse in 2021, contested receivership of the major shareholding block, and the abandoned Uskmouth coal-to-waste conversion all represent material historical integrity risks, partly mitigated by the company's subsequent pivot away from GFG-linked projects and rebranding to Ampeak Energy.

Why it's on ClimateTicker

SIMEC Atlantis Energy (now rebranded Ampeak Energy) operates the world's largest tidal stream array at MeyGen in the Pentland Firth, generating genuinely zero-carbon, predictable electricity — a legitimate mitigation play. However, the company's climate credibility is undercut by a history of entanglement with GFG Alliance (a controversy-struck industrial conglomerate), the failed Uskmouth coal-plant conversion, and a near-total absence of published SBTi, CDP, or independently verified climate targets. The core tidal asset is real and operational, but the surrounding governance and disclosure framework is thin for an investor demanding rigor.

mitigationThe company earns revenue primarily as an independent power producer selling tidal-generated electricity under UK government Contracts for Difference (CfD), with secondary income streams from battery energy storage projects (Uskmouth/Mey BESS) developed in partnership with EDF Energy.

Commitments & Certifications

Controversy & Greenwashing Watch

mediumUskmouth Coal Plant Conversion — abandoned after Welsh Government call-in

GFG Alliance contributed the coal-fired Uskmouth Power Station to SAE in 2017 for conversion to a 220 MW waste-to-energy plant; the project was called in by the Welsh Government in early 2021 and ultimately abandoned in April 2022, raising questions about asset quality and strategic credibility.en.wikipedia.org

highGFG Alliance / SFO Fraud Investigation — majority shareholder

GFG Alliance, which held a ~41–43% majority stake in SAE, was placed under UK Serious Fraud Office investigation in May 2021 for suspected fraud, fraudulent trading, and money laundering, causing SAE shares to collapse 30–34% and triggering a contested receivership of the shareholding block.energyvoice.com

mediumShare price collapse and receivership dispute (2021)

SAE shares fell over 30% in a single session in May 2021 after disclosure of a receivership attempt over the GFG-held majority stake, followed by an 80%+ intraday recovery once control was restored — illustrating extreme governance instability for a listed company.pressandjournal.co.uk

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