New Energy Recovery System Produces Renewable Energy from Municipal Water Pipeline at Skagit Public Utility District in Washington

June 29, 2021 11:03 AM EDT

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MOUNT VERNON, Wash. (PRWEB) June 29, 2021

InPipe Energy and Skagit Public Utility District announced today the completion of the East Division Street Energy Recovery Project at Skagit PUD's East Division Street booster pump station in Mount Vernon. Skagit PUD's installation is the first pressure recovery project in Washington state that utilizes the In-PRV from InPipe Energy, a new smart water and micro-hydro system that generates electricity by harvesting excess pressure from municipal water pipelines. By recovering the energy embedded in excess water pressure and converting it into electricity, the system will generate up to 94,000 kilowatt-hours (kWh) or more of electricity per year while providing pressure management that helps save water and extend the life of the pipeline. The electricity produced will be used to offset the use of grid power at the pump station, saving Skagit PUD (and its ratepayers) money and replacing the equivalent of 3.5 million pounds of fossil-fuel-based carbon emissions annually. The project was made possible with assistance from Puget Sound Energy (PSE), as part of their "Beyond Net Zero Carbon" initiative, and a Coal Transition Board Grant from TransAlta energy company.

"Converting excess water pressure into clean, renewable energy is a win for the environment and our ratepayers," said George Sidhu, Skagit PUD General Manager. "Environmental stewardship is one of Skagit PUD's core values; and in our actions, we want to preserve our region's natural resources. As a public utility, we're always looking to innovate and create greater efficiencies in the operation of our water system, and the East Division Street micro-hydro project checks all the boxes," Sidhu added.

"The world's water infrastructure is energy and carbon intensive," said Gregg Semler, president and CEO of InPipe Energy. "We see a large, global opportunity for water agencies to meet their mission while also battling the impact of climate change. The sustainability of our nation's water systems is paramount, yet water agencies are being constantly challenged with rising energy costs and aging infrastructure. By providing a more precise way to manage pressure in pipelines while also producing electricity our In-PRV product helps water agencies offset their energy costs while saving water, reducing carbon and extending the life of their infrastructure."

In January 2021, Puget Sound Energy set its aspirational "Beyond Net Zero Carbon" energy company goal. Through this initiative, PSE targets reduction of its own carbon emissions to net zero and goes beyond by helping other sectors to enable carbon reduction across the state of Washington.

"We value the opportunity to provide this energy efficiency program grant to Skagit PUD to help them be more efficient and build resilience," said PSE President and CEO Mary Kipp. "This partnership reflects our commitment to combat climate change by reducing our own carbon emissions to net zero and helping other sectors to enable carbon reduction across the state of Washington."

TransAlta, which is in the process of phasing out its last coal-fired power plant in Centralia, Wash., by 2025, has committed to supporting local communities and renewable energy development through its Coal Transition Board Grant process.

"We are committed to the development of innovative new forms of renewable energy, and this energy recovery project at Skagit PUD sets a great example for the role water utilities can play in making both water and energy more sustainable," said John Kousinioris, CEO of TransAlta. "We are excited about the potential for the In-PRV to produce carbon-free electricity from water pipelines across North America."

"Water is a critical resource in Skagit County as it relates to power generation, and this project demonstrates our regional leadership," Sidhu said.

The In-PRV Pressure Recovery Valve:

Skagit PUD's pump station is the second installation of the In-PRV in a municipal water pipeline. The first, in the city of Hillsboro, Oregon, came online in September 2020 and is on track to produce 200,000 kWh or more of electricity each year.

Here's how the system works:

  • Water agencies typically deliver water to customers by gravity feed and use control valves, called pressure-reducing valves (PRVs), to manage pressure in their water pipelines. PRVs help protect pipelines from leaks and deliver water to customers at safe pressure.
  • Normal PRVs use friction to burn off excess pressure, which is dissipated as heat. All of that energy is, essentially, wasted.
  • InPipe Energy's In-PRV pressure recovery valve system performs like a highly precise control valve. But it takes the process one step further by converting the excess pressure into a new source of carbon-free electricity.
  • The In-PRV is the first system that combines software, micro-hydro and control technology as a turnkey product that can be installed quickly, easily and cost-effectively throughout water systems with smaller-diameter pipelines and wherever pressure must be reduced.

Learn more about the In-PRV at: InPipeEnergy.com.

About Skagit PUD:

Skagit Public Utility District is a not-for-profit, community-owned utility with a locally elected board of commissioners. Skagit PUD operates the largest water system in Skagit County, providing 9 million gallons of piped water every day to 75,000 people living in Burlington, Mount Vernon, and Sedro-Woolley, and surrounding Skagit County communities. Providing customers with high-quality water services at an affordable price is our focus.

About InPipe Energy:

InPipe Energy is a renewable energy and smart water technology company that produces renewable energy from existing infrastructure. InPipe Energy has developed a new product called the In-PRV, it is a pressure recovery valve. It performs a typical pressure reducing valve (PRV) function, but it converts excess pressure into a new source of renewable energy from existing water pipelines. InPipe Energy's novel, modular approach integrates into water and energy infrastructure with software controls to improve operational efficiencies, save water, reduce carbon and make both water and energy more resilient. What could be more sustainable? For more information, visit inpipeenergy.com and follow us on LinkedIn.

Read the full story at https://www.prweb.com/releases/new_energy_recovery_system_produces_renewable_energy_from_municipal_water_pipeline_at_skagit_public_utility_district_in_washington/prweb18027065.htm



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