Strategy, modelling, regulatory submissions, and independent review. Work that helps UK water companies and regulators make better decisions, faster.
Long-term planning and strategic advice to help water companies manage supply and demand effectively and sustainably over 25 to 50 year horizons.
Expert support for PR24 and PR29 business cases. Cost adjustment claims. Robust, evidence-based responses to regulators.
The numbers behind the strategy. Stochastic drought analysis, climate scenarios, demand forecasting, yield assessments, and integration of real-time operational data.
Drought plans, climate adaptation, supply risk quantification. Assessment and management of water supply risks built to 1-in-500 standards.
A second set of eyes that knows where to look. Peer review and independent technical assurance for boards, regulators, and funders.
Clear, authoritative reports that decision-makers actually use. Translating large environmental datasets into defensible evidence packs for regulators and boards.
We'll work out what decision you're trying to make, who needs to be convinced, and whether we're the right people for it. No commitment.
A clear written scope before any work starts. Both sides know exactly what is being delivered and how.
Drafts shared early so we can correct course together. Final report delivered on the agreed date.
Follow-up calls, regulator responses, and presentations included in the original scope. We finish the job.
DJS Hydro brings over a decade of personal, hands-on experience in technical analysis, modelling, and water resources strategy across the UK water sector.
We work on the kind of problems where the analysis has to be right and the explanation has to land — water resources plans, investment cases, regulatory submissions, and the modelling that sits behind them.
Being independent matters. No vendor relationships to protect, no internal hierarchy to satisfy. Just the right answer to the question you asked.
Every project is led directly by a Water Resources Strategy specialist with deep experience of delivering this work inside a major UK water company. You get the expert, not a team managing an expert.
Drop a short note about what you're working on. We'll come back within a working day, or two if the question is interesting.
The more specific the better. What decision are you trying to make, and by when?