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EDITOR’S CHOICE ECO POWER


‘GREEN LIGHT' FOR UK'S FIRST HIGH PRESSURE CNG STATION H


eavy Goods Vehicles (HGVs) looking to use compressed natural gas (CNG), the


cleanest, cheapest fuel for trucks and buses, will be able to fill up close to junction 28 on the M6 in Lancashire as CNG Fuels has secured planning permission for the UK's largest CNG filling station, which should be open in late 2015. The new station will be the first high pressure connected, public-access CNG filling station in the UK, capable of refuelling five hundred plus HGVs per day, or as much as 3,500kg of CNG per hour. CNG dispensed from local transmission system (LTS) connected stations is the lowest cost fuel available to HGVs, as well as having the lowest Well-To- Wheel emissions of any fossil-based HGV fuel. The filling station can also supply 100%


renewable biomethane (Bio-CNG). It is situated close to junction 28 on the M6 and will be an important part of the UK's rapidly growing CNG refuelling infrastructure. The station's first major customer will be Waitrose. Philip Fjeld from CNG Fuels says: "Our


customers can save more than 40% of their diesel cost, even after the recent drop in diesel prices, and cut CO2 emissions by more than


20% by using CNG. If fleets choose to fuel their trucks with Bio-CNG, they will be running on 100% renewable gas." "Because the new station is directly connected


to a high pressure gas pipeline we can "fast-fill" hundreds of HGVs a day. We plan to rollout additional public-access LTS CNG stations in the years ahead, meaning more companies can switch to CNG or Bio-CNG. Companies that choose this gas will then be paying a lot less for fuel and also making big greenhouse gas savings." Waitrose has a regional distribution centre (RDC) less than one mile from Leyland LTS CNG


CNG Fuels www.cngfuels.com T: 7768 007 009


NEW ON-SITE BIO-ENERGY PLANT COVERTS 1,000M3 OF DISTILLERY CO-PRODUCTS B


ritish company Clearfleau, a provider of on-site anaerobic


digestion (AD) solutions for food and beverage companies, has handed-over its latest bio-energy plant at Diageo’s Glendullan distillery. This innovative bio-energy facility is an example of how the Whisky sector can embrace the circular economy. By generating bio-energy from its co- products, Diageo is showing how one of Scotland’s most traditional industries can deliver carbon savings and wider environmental benefits. The Glendullan plant optimises energy output using co- products from the distillation process. Following the 2013 completion of an


initial high-rate digestion facility at the Dailuaine malt distillery (also in Speyside), Diageo commissioned Clearfleau to build a second facility. The Glendullan plant is very similar. It receives feedstock from other distilleries in the Dufftown area, fed to the plant in a recently completed


pipeline reducing local truck movements. Initial results indicate the Glendullan


bio-energy facility is generating 2 million m3 of biogas per year – producing about 8,000MW hours of thermal energy for the distillery, based on processing up to 1,000m3 of distillery co-products on a daily basis. Clearfleau’s on-site AD technology converts a range of co-products into valuable biogas that generates renewable heat for use in the distillation process while reducing a major overhead, its co- product disposal costs. By reducing costs


Clearfleau www.clearfleau.com T: 0844 477 6292 24 WINTER 2015 | ENERGY MANAGEMENT / ENERGYMANAGEMENT


and benefiting the local environment, Diageo is setting an example to British food and beverage companies (including other distillery sites). Clearfleau’s unique liquid anaerobic digestion system can achieve a reduction in COD load of greater than 95%, minimising additional treatment required for discharge of cleansed water to the river Fiddich. The facility will also reduce the site’s fossil fuel based energy costs. Engineering challenges involved


developing a plant able to handle higher strength materials such as pot ale, as well as the variability of strength and volume of feedstock being fed to it. They also included the location of the plant on a sensitive location in a valley adjacent to the river Fiddich and achieving the complex water course discharge standards. Clearfleau’s unique liquid digestion


system delivers a reduction in COD load of greater than 95%, minimising additional treatment required for discharge of cleansed water to the river Fiddich.


station and will be the anchor customer for the CNG station. Justin Laney, general manager, Central Transport, John Lewis Partnership says: “We are proud of the efficiency of our Distribution network, and a key element is running a low carbon fleet. We see the use of methane, and in particular biomethane, as the main opportunity to make a step change in the carbon emissions of our heavy truck fleet. We're currently running 44 ‘dual-fuel' trucks that use a mixture of gas and diesel fuel, and are also interested in running ‘dedicated' gas trucks. The Leyland gas filling station is in a good location for us, and importantly gives us the opportunity to purchase gas with ‘Green Gas Certificates”. National Grid's network strategy director,


David Parkin said: "We believe that the use of natural gas from the local transmission network, as a fuel in the transport sector, can play a significant role in reducing greenhouse gas emissions in the future. Whether it's CNG or Bio-CNG, the benefits for use as a fuel in HGVs is clear; lower emissions, quieter engine noise and favourable fuel prices, compared with traditional liquid fuels.


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