Loss across the fuel chain
Authoritative emission-factor guidance identifies evaporative losses during tank storage, filling, transfer and vehicle refuelling.
Sources: US EPA AP-42 · EMEP/EEASPPE · System for Preventing Petrol Evaporation
Reduce petrol evaporation at source.
SPPE is a fuel-storage technology designed to reduce evaporative fuel loss at source — helping petrol stations, storage operators and fuel-handling businesses retain more product and reduce VOC emissions.
- Engineering development since 2007
- UK company · North West of England
- Canadian patent application No. 3,269,983 (2025)
02 · The challenge
Petrol lost as vapour cannot be sold.
Petrol is volatile. During storage, loading, unloading and refuelling, part of the product can escape as vapour. The scale varies with temperature, fuel volatility, tank configuration, throughput and the controls already in place.
Commercial impact
Evaporative losses create commercial costs across petrol storage, distribution and refuelling. The scale varies significantly by application and the controls already in place.
Review the research and methodologyAir-quality impact
Petrol vapour contains non-methane volatile organic compounds. VOCs contribute to ground-level ozone and photochemical smog, and petrol-vapour emissions are regulated across storage, distribution and refuelling.
Sources: GOV.UK · EPA · EU Stage I and Stage IIFuel lost as vapour is lost revenue — and an avoidable source of VOC emissions. Review the research and methodology
03 · The SPPE approach
Prevention before recovery.
Vapour-recovery systems capture or return vapour after it has formed. SPPE takes a prevention-first approach designed to reduce evaporative loss at source and complement the wider control measures used across fuel storage and distribution.
Captures or returns displaced vapour after it has formed. Stage I and Stage II controls are established parts of petrol storage, delivery and refuelling.
Designed to reduce evaporation within compatible fuel-storage applications before vapour reaches downstream recovery controls.
Detailed engineering is available through controlled technical review.
Applications
Applications under technical assessment
SPPE is being developed for a range of petrol-storage and fuel-handling applications. Suitability depends on tank configuration, operating conditions and site requirements.
Petrol stations
Underground and above-ground forecourt storage.
Discuss your application →Bulk storage and distribution
Storage tanks, terminals, tankers and selected marine applications.
Discuss your application →Transport and vehicle applications
Selected tanker, fleet and vehicle-tank applications subject to engineering assessment.
Discuss your application →04 · Evidence
Evidence-led development.
SPPE has been developed through laboratory work, field installations and iterative engineering since 2007.
Customer-reported field result
A 2019 customer letter reported approximately 83% reduction in evaporation losses at one SPPE installation.
Patent history
Iranian patent registered in 2007, US provisional application filed in 2011, and Canadian application No. 3,269,983 filed in 2025.
Technical due diligence
Supporting records can be reviewed with prospective operators, partners and investors, subject to confidentiality and publication permissions.
05 · Company
Engineering a cleaner approach to fuel storage.
Greenie Positive Limited is a UK cleantech company based in the North West of England. SPPE is its core product, supported by long-running engineering development and related initiatives in simulation and engineering software.
06 · Contact
Discuss your site, pilot or partnership.
Tell us about your storage tanks, throughput and objectives. We will suggest the most appropriate technical next step.