Erebus Consulting Ltd
Independent technical and strategic support
Erebus works upstream of decisions, where uncertainty is highest and judgement matters most. We support clients in complex, regulated energy systems by structuring ambiguity into defensible decisions that stand up to scrutiny.
Working in complexity, delivering clarity
We don't sell standard services. We solve decision problems
Erebus refers to the space before order exists. We use it as a metaphor for the stage of complex energy projects where decisions must be made before certainty is available.
At the point where complexity, risk and consequence meet
Technical complexity, delivery risk and commercial consequence intersect on every project we take on. Solar PV, battery storage, wind, heat networks and grid-constrained infrastructure, from feasibility through construction to asset life decisions.
Scoped to the decision, not to a service catalogue
We do not issue standard quotes for predefined scopes. We work with clients to define what is actually needed, then deliver it with precision. Most engagements start as a single bounded piece of work, and scale or stop from there.
The practice
Senior judgement, backed by a network of specialist practitioners
How Erebus is built
A senior practice, not a pyramid
Clients get a single point of technical oversight and decision coordination, with access to trusted specialists and coordinated expertise, without the overhead of a large consultancy.
Senior people on the work
Engagements are led and delivered by people with the experience to make the judgement call. There is no layer of junior resource learning at the client's expense.
A network of associates
For work requiring specialist site presence or discipline-specific expertise, Erebus draws on a select network of experienced independent practitioners across construction management, commissioning, ecology and environmental compliance.
Coordinated, not subcontracted away
Erebus coordinates requirements, information flow and decision integrity throughout. Specialists contract directly with the client where that arrangement serves them better.
Independent by structure
No contracting arm, no equipment supply, no delivery interest. Our recommendations carry no stake in the outcome beyond being right.
Where Erebus supports you
Engagement at any stage
Most engagements begin with a single, clearly bounded piece of work. Support scales or stops as the project requires.
Early stage and feasibility
- Feasibility and options appraisal
- System strategy
- Independent decision review
- Scrutiny-ready support
Pre-construction and procurement
- Pre-construction readiness review
- Principal Designer (CDM)
- Pre-procurement technical shaping
- Independent technical assurance
Construction
- Owner's Engineer
- Principal Designer (CDM)
- EPC contractor support
- Specialist network coordination
Commissioning and handover
- Commissioning readiness review
- Completion assurance
- Health and safety file
- Owner's Engineer
Operation and asset life
- Technical problem solving
- Portfolio risk and assurance
- Strategic asset life
- Expert witness and dispute support
How Erebus thinks
A consistent method, whatever the question
Our role is not to produce exhaustive analysis, but to structure uncertainty into decisions that can withstand scrutiny.
Clarify the real decision
Identify what is actually being decided, by whom, and on what basis.
Define the boundaries that matter
System constraints, regulatory limits, interfaces, and the assumptions that shape outcomes.
Stress-test under challenge
Examine how decisions hold up under audit, funding, regulatory or adversarial scrutiny.
Structure defensible outcomes
Clear recommendations, with logic that remains robust even as conditions change.
Who we typically support
Clients whose decisions are exposed, contested or difficult to reverse
Erebus works with organisations operating in complex, regulated energy systems, where the cost of being wrong is high and the evidence has to hold.
Asset developers and project sponsors
Navigating grid constraint, regulatory uncertainty, pre-construction risk, contractor procurement and delivery assurance.
Investors, boards and funders
Requiring independent technical judgement before releasing capital or approving construction-phase milestones.
Operators and asset owners
Facing underperformance, system failure or asset life decisions across critical infrastructure.
Communities and smaller developers
Requiring senior independent technical support and statutory roles without the cost or overhead of a large consultancy.
Large consultancies and advisory firms
Seeking to supplement their teams with specialist independent expertise at key project stages.
Local authorities and large energy users
Looking to leverage independent technical support and de-risk their projects.
In their words
What clients say
The grid reform process was evolving, highly uncertain and required thorough technical evidence and understanding. David helped us understand what really mattered, challenged our assumptions, and structured our applications in a way that gave us confidence they would stand up to scrutiny. All of the submissions were ultimately successful.Andy BrandOperations Director, Abbey Group
He combines strong technical expertise with a pragmatic commercial outlook and is particularly effective in complex or high-stakes situations. His ability to bring clarity and sound judgement makes his advice highly valued by clients.Nick EdgarCo-head, Savills Earth Capital Advisors
David's support helped us navigate a complex commercial and technical decision with greater clarity and confidence. The advice provided reduced risk for us by making the technical implications of the decisions explicit and defensible.Anna LewisDecarbonisation Project Manager, Caerphilly County Borough Council
Next step
Bring a real question
Clients are not expected to arrive with a perfect brief. Part of the Erebus role is to help define the right question before answering it. An initial conversation is usually the most effective first step.