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Scottish Water announces wastewater heat recovery venture

SHARC Energy Systems has joined forces with Scottish Water Horizons to establish a joint venture to expand and accelerate the deployment of wastewater heat recovery systems across Scotland.

From left to right: Scottish Water Horizons' Paul Kerr, Scottish Water's Alan P Scott and SHARC Energy Systems' Russ BurtonFrom left to right: Scottish Water Horizons' Paul Kerr, Scottish Water's Alan P Scott and SHARC Energy Systems' Russ Burton

The joint venture has been set up to manage the installation and maintenance of a number of key green energy projects that are currently in the advanced stages of planning.

Scottish Water Horizons will provide commercial funding for the projects, with SHARC Energy providing the design, build and operational expertise for the green energy installations.

The Scottish Government is supporting the schemes by providing 50% grant capital support through its LCITP (Low Carbon Infrastructure Transition Programme).

The new alliance will support the Scottish Government’s ambitious renewable heat and carbon reduction targets for 2020. It is the result of three years of informal collaboration between SHARC and Scottish Water Horizons, which has created a £20M pipeline of potential installations across Scotland that, when deployed, would generate 170 GWHs (gigawatt hours) per year of heating and cooling to displace the fossil fuel currently used.

The expansion of heat from wastewater programme follows the launch of the UK’s first Sewage Heat Recovery system, developed and installed by SHARC and facilitated by Scottish Water Horizons, at Borders College in Galashiels, which aims to displace 1.8 GWHs of natural gas and save over 150 tonnes of carbon emissions per year.

The system provides heating and cooling to customers through a heat supply agreement. This works much like that of any energy supplier, but the main difference is that customers have no upfront costs.

Included in the heat supply agreement are the costs of design, installation, servicing and maintenance and the supply of equipment.

The SHARC system, which has been deployed in numerous international locations, intercepts wastewater from sewers and uses heat pump technology to amplify the natural warmth of wastewater.

This generates an energy-saving, cost-effective and environmentally friendly system for heating, cooling and hot water production in commercial and residential buildings.

Russ Burton, SHARC’s chief operating officer, said: “This announcement is a very exciting step for SHARC and represents the culmination of three years of very productive working with Scottish Water Horizons to identify opportunities for the SHARC technology.

“Having the support from Scottish Water Horizons will give customers confidence in the SHARC technology, positioning it as a sustainable and viable wastewater heat recovery solution.

“With gas prices constantly fluctuating, our heat supply agreement gives cost certainty by guaranteeing the price for the length of the agreement.”

Paul Kerr, Scottish Water Horizons' managing director, said: “Heat accounts for over 50% of Scotland’s total energy use, so by forming this alliance to deploy further heat from waste water schemes, we can help further develop Scotland’s low carbon economy.

“Our alliance with SHARC provides us with a unique and exciting opportunity to maximise the residual heat that runs through some of Scottish Water’s 32,000 miles of sewer pipes. Using this innovative technology we are able to roll out a sustainable, low-carbon heating solution to our customers, whilst enhancing and protecting the environment.”

Author: Robin Hackett, editor, WWT
Topic: Energy/Water Nexus , Sustainability & social value
Tags: wastewater , Scottish Water


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