How do build-out, utilisation, pricing, and operating assumptions shape project performance?
Model profile
Solar Green Hydrogen
A solar plant built to power an electrolyser, set up for South Africa's Northern Cape or for any country you choose: a 20 MW alkaline electrolyser on a 40 MW single-axis tracking solar plant near Upington, selling hydrogen to an industrial buyer under a 20-year contract and the solar power it cannot use under a wheeling agreement, with an optional battery and an optional grid top-up whose emissions are checked against the EU renewable threshold. A clone of Wind Green Hydrogen with the sun in place of the wind, so the two compare directly. Other cases: a PEM electrolyser, a battery, more sun, fixed tilt, no export, an off-peak grid top-up, an export ammonia price, no grant, and a concessional package.
Decision scope
Questions this model helps you examine
What capital, replacement, working capital, and financing programme is required?
How resilient are cash flows and returns under operational and market downside cases?
Model capabilities
What this model includes
The profile below is generated from the same catalogue and workspace definitions used by the application.
- The solar plant sized from the electrolyser, tracking or fixed, with a DC/AC ratio
- An hourly typical solar year calibrated to the P50 capacity factor
- An optional battery charged from the midday surplus
- An optional grid top-up at Eskom Megaflex tariffs or your own, with its emissions
- Carbon intensity of the hydrogen against the EU renewable threshold
- Alkaline or PEM electrolysers, with stack, inverter and battery replacements
- A researched Northern Cape profile, and every other country selectable
- Debt sized and sculpted on P50 and P90 cover, with reserves, a lock-up and a grant
- Levelised cost of hydrogen by component, and break-even prices for the project, equity and lenders
- The wind model's full-risk run, with a battery sizing table
- Contractor delay damages and delay-in-start-up insurance for a lost commissioning year
Build the case
Inputs and workspaces
- CasesLoad the base, PEM, battery, more sun, fixed tilt, no export, grid top-up, export price, no grant or concessional case
- Project and solar plantCountry, timeline, electrolyser size, solar oversizing, tracking, DC/AC ratio, latitude, capacity factor, P90, export, inverters and the local currency
- Electrolyser and salesTechnology, power use, minimum load, stacks, water, the hydrogen contract, surplus power, oxygen, the battery and the grid top-up
- Capital and operating costsCapital costs per kW, development, contingency, operation and maintenance, insurance, water and levies
- StaffPositions, headcount and monthly cost in local currency
- FinancingLoan sizing on P50 and P90 cover, gearing, rate, tenor, reserves and the grant
- TaxCorporate tax, capital allowances on the solar plant and the hydrogen plant, losses and holidays
- Valuation and riskCost of capital, the hydrogen price deck and the Monte Carlo of eight risks
- Due diligenceIrradiance measurement, offtake, licences, grid, environment, water, contracts, safety and certification
Review the result
Outputs and analysis
- Project NPVUSD, at WACC
- Project IRRUnlevered, after tax
- Equity IRRAfter debt service
- WACCDiscount rate
- Levelised cost of hydrogenUSD/kg, at WACC
- Levelised hydrogen priceUSD/kg, contract then merchant
- Break-even hydrogen priceUSD/kg, first operating year
- Price over break-evenContract price headroom
- 30 additional metrics in the workspace
- Financial statementsDetailed schedules
- Lender view, energy, funding & valuationDetailed schedules
- Risk & analyticsDetailed schedules
Designed for review
Who this model is for
- Infrastructure sponsors
- Operating and engineering teams
- Financial advisers
- Investors and lenders
Governed evidence
The review trail stays with the result.
Each completed calculation preserves the model version, saved inputs, reporting-currency snapshot, immutable run, and result fingerprint used for its reports.
- Version-controlled calculation logic
- Saved assumptions and scenarios
- Immutable calculation runs
- Reporting context preserved in exports
Ready to explore the case?