The East Bay Municipal Utility District (EBMUD) is a California utility that was formed over 100 years ago and serves water to 1.4 million customers in the San Francisco Bay area.
Their primary water supply comes from the Sierras and flows by gravity across the central valley to their water treatment plants in the East Bay. And that’s where they have over 400 facilities that they use to serve water to customers either at sea level up to about 1500 ft in elevation and all those facilities are connected by a very large piping network that’s 4200 miles long. Thanks to the leadership of the district’s board of directors, EBMUD have a goal to be carbon neutral by 2030. And since 2000, they’ve reduced their greenhouse gas emissions by approximately half through a combination of strategies such as generating hydro electricity, solar, and bio gas. This project offers EBMUD another strategy to evaluate their portfolio to becoming carbon neutral.
The HydroXS energy recovery system is a micro hydro turbine coupled with a control valve that takes the excess pressure in a municipal water system and converts it into clean renewable energy.
A HydroXS basically replaces a pressure reducing valve that EBMUD have on site. It allows them to capture the energy that would normally have been burned off as friction and allows them to reduce the pressure in an area that is below here. Having the opportunity to capture energy that they are normally losing is a great opportunity. It allows EBMUD to be more efficient with their operation as opposed to the way they used to do things 50, 60, or 70 years ago.