What is Carbon Free Future?
A network of 28 identical coastal mega-sites forming a unified national energy infrastructure — delivering hydrogen, electricity, water security, and public dividends. Not just a power station. A National Wealth Engine.
Conceptual aerial view of a CFF coastal mega-site — one of 28 identical facilities proposed across the UK coastline
The “Sea-to-Street” Factory
Each CFF site takes in seawater and sends out hydrogen, oxygen, desalinated water, critical minerals, and electricity. It is not just a power station. It is a complete industrial ecosystem.
1,344 identical HTGR modules across the fleet allow UK factories to perfect the manufacturing process, allowing manufacturing methods to standardise and mature over the rollout — the “Fleet Effect.”
“CFF transforms the UK from spending £50B+ per year on imported energy into a fully sovereign energy producer with 200 years of price stability and zero foreign dependency.”
Each CFF site is designed as a modular platform with 48 HTGR modules arranged in 8 self-contained six-packs. Any six-pack can be taken offline for maintenance without affecting the other seven — built-in resilience at the architecture level.
The original CFF concept was based on PWRs, but engineering analysis revealed a fatal flaw: PWRs produce steam at ~285°C while HTSE requires 700–850°C. HTGRs close that gap — helium exits the core at 750°C, producing 700°C steam directly compatible with electrolysers. No parasitic heating. No economic penalty.
Each Mega-Site Produces:
- ⚛️ 48 HTGR modules (8 six-packs × 6) — 3,840 MWe gross, 3,619 MWe net
- 🔵 2,072 t/day green hydrogen (44 HTSE banks)
- ⚡ +231 MWe surplus electricity exported to grid
- 💧 50,000 m³/day desalinated water (RO + thermal)
- 🫁 Oxygen — public services first, industrial surplus sold onward
- 🧂 Zero-waste brine → road de-icer first, surplus chemical feedstocks sold onward
- 🔥 District heating via waste heat to surrounding communities
48 HTGR Modules per Site
80 MWe / 200 MWth each, arranged in 8 self-contained six-packs. Helium coolant exits the core at 750°C, producing 700°C steam — directly compatible with HTSE electrolysers. Any six-pack can be taken offline without affecting the other seven. 1,344 modules nationally enable true fleet manufacturing.
Desalination
Seawater intake produces HTSE-compatible ultra-pure demineralised water via reverse osmosis (primary) and thermal distillation (using waste heat), plus potable water and a Strategic Water Reserve (50,000 m³/day per site). Each site’s desalination plant can operate independently during drought conditions — ensuring agriculture never fails and crops are always delivered.
HTSE Electrolysis
44 High-Temperature Steam Electrolysis banks per site split 700°C steam into hydrogen and oxygen at ~40 kWh/kg H₂. The primary purpose of each site — hydrogen production for hard-to-abate sectors, not just electricity. HTGR heat at 700°C goes directly to the electrolysers with no parasitic electrical heating required — the critical advantage over PWR designs. Each site produces 2,072 tonnes/day of green hydrogen.
Zero-Waste Brine
RO brine is concentrated to ~23% with public service use first: council road de-icer is supplied before any commercial sale. Surplus brine and recovered salts move into chemical feedstocks for chlor-alkali uses, water-treatment chemicals, industrial process salt, and other domestic manufacturing inputs. Nothing goes back to sea.
District Heating
HTGR waste heat is piped through a district heating model to surrounding communities, reducing heating burden from the Grid and improving local energy resilience. Already proven at scale — Copenhagen’s system serves ~1 million people with over 98% reliability, covering ~98% of buildings in the Greater Copenhagen metro area.
120m Earth Berm Protection
15-metre-thick compacted earth berms at 120m separation replace the old 3-mile safety ring. Surface build with equivalent physical protection to underground placement — ~40% cheaper than cavern construction. Proven at Fort St. Vrain (USA), HTR-PM (China), and military installations worldwide. Site footprint: just 0.48 km².