INERATEC, Rolls‑Royce Power Systems: MATERA e‑Diesel meets selected EN 15940 parameters in lab assessment

Assessment scope

Rolls‑Royce Power Systems completed a laboratory fuel assessment of INERATEC’s synthetic MATERA e‑Diesel®. The laboratory work focused on chemical and physical fuel properties, selected material compatibility parameters, lubricity, cetane‑related parameters and short‑term storage stability. Engine performance, emissions behaviour and application‑specific operating requirements were outside the test scope.

Key findings

The tested fuel met selected assessed requirements of EN 15940 and relevant parameters of the mtu Fluids and Lubricants Specification A001061/46. Elastomer compatibility showed no significant differences compared with reference fuels. Under laboratory storage conditions, the fuel remained stable for at least three months with respect to neutralization number, oxidation stability and lubricity. Sulphur content was below 5 mg/kg and the net calorific value was measured at approximately 44.0 MJ/kg. Exhaust emissions were not evaluated.

Limitations and next steps

Engine power output, fuel consumption and performance characteristics were not assessed. Long‑term stability analyses are ongoing and further technical evaluation is required before any engine‑specific application statements or approvals can be made. Any use in specific engines remains subject to applicable fuel releases, engine series, operating conditions and customer validation.

Implications for critical infrastructure

Report authors and company representatives position MATERA e‑Diesel as a pathway to lower‑fossil backup power without replacing installed generator fleets, offering a route to CO2‑neutral emergency power for data centres and other critical operators while maintaining a focus on reliability.