willbö
Industrial · hydrogen and renewable gases

Green hydrogen plants, engineered to close FID.

Concept to FEED for green-H₂ plants. Electrolyser balance of plant, P&IDs, plot layout, HAZOP, cost validation. Active projects from 2 MW to 10 MW. Vigo and Mumbai delivery, multi-discipline under one roof.

12 MW
Under engineering across 3 projects
2026–2030
Spanish hydrogen roadmap window
FEED
Delivered to FID-ready spec
What we deliver

Six deliverables that close FID, not six PowerPoints.

A hydrogen FEED that survives investor and lender due diligence has six concrete deliverables. We sign each one, and we own the trade-offs between them. No subcontracting that leaves you holding seams.

01 · concept

Feasibility and concept selection

Site screening, electrolyser sizing, water and power balance, off-take routing. Decision memo with three options costed and an explicit recommendation.

02 · basic

Basic engineering · BED

Process flow diagrams, mass and energy balances, equipment list, datasheets for long-lead items. HAZID and constructability review closed.

03 · FEED

Front-end engineering design

P&IDs, plot plan, 3D model preliminary, electrical SLD, control philosophy, instrument index. CAPEX ±15 % with line-item traceability.

04 · BoP

Electrolyser BoP integration

Vendor-neutral integration of alkaline and PEM stacks. Cooling, gas treatment, drying, compression, storage. Vendor specification packages.

05 · safety

HAZOP, HAZID, ATEX zoning

Full HAZOP cycle, ATEX zoning drawings, dispersion modelling for venting events, fire and gas detection layout, emergency depressurisation.

06 · cost

CAPEX, OPEX and LCOH

Bottom-up CAPEX estimate, OPEX model, LCOH calculation under realistic capacity factors. Inputs for grant applications (PERTE, GAIN, CDTI).

Active projects

2 MW. 10 MW. Vigo port. Live work, not slideware.

Three of our current green-hydrogen engineering scopes. Each links the technical case study with the lessons learned.

From concept to FID

Five phases, no surprises at FID.

Each phase closes with a formal deliverable and a go/no-go gate. We do not start the next phase until the previous is signed off. This protects schedule and keeps lender due diligence aligned with engineering progress.

PHASE 0
Site and resource screening

Water, power, off-take, permitting constraints. Decision to engage with one site.

PHASE 1
Concept and feasibility

Three options costed and ranked. Recommendation with rationale.

PHASE 2
Basic engineering

PFD, mass/energy balance, equipment list, HAZID. Lender-grade documentation.

PHASE 3
FEED

P&IDs, plot, 3D, electrical SLD, control philosophy. CAPEX ±15 %.

PHASE 4
FID support

Tender packages, vendor evaluation, contract negotiation, EPC handover.

Engineering stack

Tools and disciplines under one roof.

Why willbö

Recent insights

What we are writing about hydrogen, this quarter.

Have a hydrogen project that needs to close FID? Let us read the brief.