Updated breakeven for ITM: 130mw through Hydropulse15 Sep 2025 21:01
Here’s how I’m framing it in my notes over the past month or so — Hydropulse breakeven vs Trident:
the old breakven was “sell ~400–500 MW of Trident kit.” That was the one-off equipment model. Of course its much lower with Neptune V's.
Hydropulse is different. I’m earning recurring EBITDA from operating MW and selling hydrogen, so breakeven = how many MW online cover the latest audited overhead (~£33m) — not the older £28m prelim.
My simple, sane assumptions:
1 MW PEM ≈ ~151k kg H₂/yr (55 kWh/kg, ~95% uptime).
Non-power opex (water, compression/drying, O&M) includes stack replacement accrual.
Manufacturing cost of the kit is capex here (not EBITDA): electrolyser ~£0.87m/MW, “all-in installed” plant ~~£2.0m/MW. Financing/depreciation matter for cash/EBIT, but EBITDA breakeven is driven by margin per kg vs overhead.
Breakeven MW (Hydropulse), side-by-side cases:
Low margin — H₂ £3.50/kg, power £30/MWh, non-power £0.70/kg → ~190 MW.
Base case — H₂ £4.50/kg, power £40/MWh, non-power £0.60/kg → ~128 MW.
High margin — H₂ £6.00/kg, power £35/MWh, non-power £0.50/kg → ~61 MW.
Bottom line (my takeaway):
Old Trident breakeven guidepost: ~400–500 MW sold (one-off margin).
Hydropulse breakeven: ~60–190 MW operating, with ~130 MW a clean base-case read — and I’ve accounted for real running costs (incl. stacks).
The swing factor isn’t kit price; it’s the spread between H₂ sale price and power times uptime.