The 150 kg/h Gap: Big Enough to Be Real, Small Enough to Ship

Gasification splits into two worlds. Lab machines process 5 to 20 kg/h and prove chemistry. Industrial plants process 2 to 20 tonnes per hour and cost hundreds of millions. Between them sits a gap that most of the industry treats as empty space. The X-150 occupies that gap at 150 kg/h: a machine with real commercial output that still fits in a shipping container, connects to a standard 63A socket, and pays for itself in under a decade.

Why Now

The economics of scale explain why the gap exists. Below roughly 100 kg/h, a gasifier cannot cover its own labor, maintenance, and permit costs. A 20 kg/h unit produces maybe 5 to 10 kWe, enough to power a workshop, not a business. Above roughly 1,000 kg/h, you stop buying a machine and start building a plant. You need bulk feedstock contracts, multi-megawatt grid connections, a full permit stack, and a balance sheet that can carry a two year construction cycle.

The result is that small-scale gasification got stuck selling either toys or monuments. The market that actually exists, waste producers with 1 to 10 tonnes per day of feedstock who want power, heat, and cooling on site, had no product.

The Numbers

The X-150 converts 150 kg/h of biomass, about 450 kWth of fuel input, into roughly 60 to 85 kWe of net electrical output depending on configuration, plus about 250 kWth of heat in CHP mode, plus 144 kW of cooling when paired with an absorption chiller. Baseload operation runs 8,000 hours per year at 91% capacity factor. That is 600 MWh of electricity and roughly 2,000 MWh of useful thermal energy per year, enough to displace the full diesel load of a mid-sized resort or the grid import of a factory.

The machine is containerized. It arrives as one 40 m3 enclosure, roughly 6 to 8 meters by 2.5 by 2.9. Site footprint including feedstock and ash handling runs 100 to 200 m2. Foundation is a reinforced concrete plinth, 8 to 15 m3 of pour, not a building. Electrical connection is 400V three phase at 63A, the same service a decent commercial kitchen uses. Timeline from site handover to commissioning: 8 to 16 weeks, with 2 to 4 weeks of that being commissioning itself.

Total turnkey installed CAPEX for a single unit runs EUR 440,000 to 780,000, landing at roughly EUR 4,000 to 5,500 per kW installed, consistent with European benchmarks. A full trigeneration package with engine, absorption chiller, heat recovery, and civil works comes to about EUR 1.17 million. Levelized cost of electricity lands at EUR 0.12 to 0.21 per kWh, competitive with diesel generation and grid power in most of the world.

What the Unit Economics Look Like

The resort archetype tells the story. A Bali luxury resort running diesel gensets at an implied EUR 0.22 to 0.28 per kWh and paying EUR 15 per tonne to dispose of garden waste installs one X-150 with trigeneration. CAPEX: EUR 1.17 million. Annual revenue: EUR 196,560, dominated by EUR 120,000 of displaced diesel, EUR 45,360 of cooling, and EUR 24,000 of biochar. OPEX: EUR 61,000. Net cash flow: EUR 135,560 per year. Simple payback: 8.6 years. IRR: 9.8% over 20 years.

The Caribbean resort model with stronger diesel displacement and carbon credit revenue improves to 13.8% IRR and a 6.8 year payback. The Spanish factory archetype running two units against EUR 0.15 per kWh grid power and EUR 75 per tonne carbon allowances moves the same logic into an industrial setting, where the heat replaces a natural gas boiler.

Sensitivity is honest. Diesel at EUR 0.55 per liter drops IRR to 6.2%. Premium biochar at EUR 0.20 per kg lifts it to 12.4%. Dropping the chiller costs 3 points of IRR. The economics live or die on utilization, feedstock cost, and whether the heat and cooling actually get used. Those are operator decisions, not technology risk.

Why This Scale Wins

At 150 kg/h, one person can run the plant. Labor is 0.5 to 0.75 FTE, not a shift crew. Maintenance is engine-level work, not plant-level contracting. The feedstock pipeline is 1,050 to 1,440 tonnes per year, which a single local waste stream can supply at zero or negative cost, not a logistics network.

At 150 kg/h, the project is financeable by a single balance sheet. EUR 500,000 to 1.2 million CAPEX sits in SME financing territory. Compare that to the EUR 200 million a 5 tonne per hour industrial gasifier requires, and the comparison is not about technology at all. It is about who can say yes to the project.

At 150 kg/h, deployment is a logistics event, not a construction project. One container, one crane, one concrete pour, one 63A connection. The X-150's multi-feedstock capability, proven over 1,939 hours in Paris on municipal digestate, sewage sludge, and horse manure, means the 150 tonnes per day of local waste becomes the fuel, and the EUR 150 to 300 per tonne wood pellet supply chain never enters the picture.

The competitors confirm the gap was real. Volter, Spanner Re, and Syncraft sell in the same nominal range, but every one runs air-blown on clean wood chips with a fixed grate. None offers oxy-steam syngas for fuel synthesis. None burns 25% ash sewage sludge. At 150 kg/h, the X-150 is not a smaller industrial plant. It is the first genuinely commercial machine at the size where waste producers actually live.

150 kg/h is not a toy. 150 kg/h is not a plant. It is the number where a gasifier stops being an engineering exercise and starts being a bankable asset. That is the gap, and it was empty until now.