Chris Goggin, of Rinnai, explains the relevance and value of rDME for sustaining rural businesses. rDME offers operational and ecological benefits as an alternative fuel source for off-grid businesses that require practical, economical and technically feasibility heating and hot water solutions.

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As a new era of energy production, distribution and consumption has emerged multiple governments are working hard to introduce alternative fuels into domestic energy mixes due to the economic and security uncertainty of fossil fuels. 

Mainstream media rarely provides information on ratified energy variants that can sustain national demands. This article would like to bring the UK customer’s attention towards Renewable Dimethyl Ether (rDME) – an off grid, carbon reducing fuel that is a future possibility to support rural decarbonisation. 

Renewable DME is a molecule-based fuel that can be produced through a wide range of renewable feedstocks which allows for quick and long-term sustainable production. rDME contains a similar chemical composition to Butane and propane and can be mixed with LPG in existing appliances in order to continue product operations. 

A recent trial at the Delft University of Technology, in the Netherlands, was initiated to study the introduction of rDME into market circulation and to study the feasibility of a 12% blended rDME and LPG mix. A blended mix of rDME and LPG was placed into appliances and infrastructure, both of which continued operations without interruption, whilst also reducing the carbon intensity of the fuel. 

Rinnai rDME

rDME combusts cleanly and releases no ‘soot’ emissions. rDME has properties that make it suitable for use in modified compression-ignition engines and dedicated diesel-replacement applications.  

rDME reduces greenhouse gas emissions by up to 85% better improving local air quality. Particulate and sulphur emissions are heavily reduced, with NOx emissions potentially lower depending on combustion control.

Operational plants for rDME have been mooted including the £150 million commercial site in Teesside, although this project has been affected by time rescheduling issues.  

Prior to the development of rDME, LPG was the lowest carbon emitting source of fuel for the 15% of UK businesses that function off grid. Current energy market conditions could potentially introduce further alternative fuel sources such as renewable biofuel Dimethyl ether (DME) and BioLPG into active circulation.

In this present climate of geopolitical uncertainty, all energy products and appliances should be designed to encourage all aspects of national energy security and international decarbonisation. Domestic energy security alongside reducing emissions possess significance in the global hunt for clean and sustainable energies.  

Europe and the wider world have entered a new age in terms of energy provision and security. Coupled with global decarbonisation targets, how separate nations provide domestic power and where fuel is imported from has become a serious issue. BioLPG and other fuels like DME successfully navigate these ethical issues and deliver all suited power requirements.

rDME can offer efficient operational performance and is capable of fulfilling a role in the fragile international energy market. As fossil fuels are now heavily affected by geopolitical manoeuvrings governments will have to consider alternative energies that can improve domestic energy resilience when produced from local waste or renewable sources. One such energy that passes this criterion is rDME. 

Rinnai UK offer a wide range of heat pumps, hybrid electrification and advancements in alternative biofuels such as rDME and BioLPG which the latter performs identically to conventional LPG.

Rinnai is a world leading manufacturer of hot water heaters and produces over two million units a year, operating on each of the five continents. The brand has gained an established reputation for producing products that offer high performance, cost efficiency and extended working lives. Rinnai products are UKCA certified, A-rated water efficiency, accessed through multiple fuel options and are available for purchase 24/7, 365 days a year. Any unit can be delivered to any UK site within 24 hours.

For more information visit https://www.rinnai-uk.co.uk/products