eFuels

Module from the Process Technology Training Series curriculum.

eFuels & Power-to-X Synthesis Routes · Key Conversion Pathways

Product	Synthesis Route	Efficiency (Well-to-Fuel %)	Energy Input (kWh/liter)	Cost Range ($/liter)	Key Challenge & Timeline
e-Methanol (e-CH3OH)	CO2 + H2 (Sabatier-like, Cu/ZnO)	50–60%	8–12	1.50–3.50	Water management; scaling 2026–2030
e-Methane (e-CH4)	CO2 + H2 (Sabatier)	55–70%	6–9	0.80–2.00	Biogenic CO2 sources; grid injection potential
e-Kerosene (e-Jet)	e-Methanol → e-Kerosene (MTJ process)	45–55%	11–16	2.00–4.50	Complex synthesis, SAF path validation
e-Gasoline (e-Petrol)	e-Methanol → MTG (gasoline-range)	48–58%	10–14	1.80–3.80	Market barriers vs. EVs; niche aviation/shipping
e-Ammonia (e-NH3)	N2 + H2 (Haber-Bosch on green H2)	40–50%	15–25 (inc. H2)	0.50–1.50	Haber-Bosch old tech; green H2 cost-limited
e-Dimethyl Ether (DME)	e-Methanol dimer (2 CH3OH → DME + H2O)	52–65%	8–12	1.20–2.80	Fuel & industrial chem; marine fuel potential
e-Propane (LPG)	e-Methanol → higher alcohols → C3H8	45–55%	10–15	1.50–3.20	Niche heating/power; scale-up slow
Synth. Crude (syncrude)	CO2 + H2 → mixed hydrocarbons (F-T)	48–60%	9–13	1.20–3.00	Carbon footprint neutral if renewable H2+CO2
Efficiency & Cost Drivers
Factor	Impact on Overall Efficiency	Cost Implications	Optimization Path
Green H2 production (PEM/Alkaline)	50–60% of total efficiency loss	30–45% of OPEX	Renewable power <$25/MWh critical
CO2 sourcing (point vs. DAC)	Minimal (small mass)	10–20% of OPEX	Point sources (industrial, biogas) preferred
Synthesis conversion	70–95% per pass (dependent)	5–10% of OPEX via heating/compression	Dual-loop reactors, in-situ H2 generation emerging
Product separation & purification	10–20% energy penalty	5–15% of OPEX	Cryogenic, membrane, adsorption competing
Plant utilization (capacity factor)	Higher CF = lower unit cost	~10% cost reduction per 10% CF increase	Grid-firming designs (24/7 electrolyzer load)
Carbon price/CO2 feedstock credit	Enables 20–50% cost offset if $100+/ton CO2	Game-changer if regulatory carbon pricing rises	Blended scenarios (biogas CO2 + DAC mix)
Market Timeline & Status
2025: Pilot demo plants (50–100 bbl/day equivalent); e-methanol emerging commercialization. 2026–2028: First large-scale (1000+ bbl/day equiv.) e-fuel plants (Porsche-Siemens-ExxonMobil Chile, others). Cost target parity with conventional fuels by 2035–2040 if renewable power <$20/MWh and carbon pricing enforced. Scaling bottleneck: renewable electricity and electrolysis cost curve.

Source: Process_Technology_Training_Series_v1.xlsx · Sheet: eFuels

© 2026 Inflection Point Engineering, LLC. All rights reserved. The content of this page — including calculation methods, reference data, written analysis, interactive tools, and source code — is the intellectual property of Inflection Point Engineering, LLC and is protected under applicable copyright, trademark, and trade secret laws. Unauthorized reproduction, redistribution, modification, or derivative use in whole or in part is prohibited without prior written consent.

Disclaimer. This material is provided for informational and educational purposes only and does not constitute professional engineering advice. Calculations, reference data, and methodologies are based on published standards and accepted engineering practice but are not a substitute for engineering judgment, site-specific analysis, or review by a licensed Professional Engineer. Inflection Point Engineering, LLC makes no warranties, express or implied, regarding the accuracy, completeness, or fitness for a particular purpose of any content presented here, and shall not be liable for any direct, indirect, incidental, or consequential damages arising from its use. Users assume all risk associated with applying this content to real-world design, operations, or decisions.