Ameren Illinois Launches Voltage Optimization Project in Partnership with DVI

- Illinois Future Energy Jobs Act expected to accelerate energy efficiency implementations

- Voltage optimization an important building block of Future Jobs Energy Act

- DVI's project will leverage the utility's existing smart meter infrastructure

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Jul 20, 2017, 10:00 ET

RICHMOND, Va., July 20, 2017 /PRNewswire/ -- This week, Dominion Voltage Inc. (DVI), a subsidiary of Dominion Energy (NYSE: D) and leader in Volt/VAR optimization, or "VVO" solutions, announced that it has been selected by Ameren Illinois to partner in the energy company's grid modernization and ongoing customer-focused energy efficiency efforts.

"Illinois' innovative energy policy is clearing a path to build a smarter, more resilient grid delivering greater value to Ameren Illinois' customers," said Todd Headlee, Executive Director, DVI. "DVI is proud to participate in this transformation and to show how our advanced form of advanced metering-based VVO can be a cornerstone to the state's energy efficiency and distributed energy resource strategies."

Last December, the state of Illinois passed the bipartisan Future Energy Jobs Act. The Act went into effect on June 1, 2017 and solidified the state's role as one of the country's clean energy innovators. A number of innovative energy efficiency and distributed energy projects enabled under the legislation, including VVO, are in the planning and implementation phases.

"Ameren Illinois continues to research and implement new smart grid technologies to modernize our electric distribution system infrastructure," said Ron Pate, Senior Vice President, Operations and Technical Services, Ameren Illinois. "Volt/Var optimization can deliver significant energy efficiency benefits for our customers and we look forward to implementing DVI's solution."

Among the benefits of DVI's VVO solution, end customers save on their electric bills because homes and businesses run more efficiently. Through VVO, the voltage delivered by the utility is consistently several volts lower compared to traditional distribution management system methods. The process achieves a more efficient grid operation by reducing the customer's energy consumption, peak demand, and overall system losses. In contrast to some other energy efficiency measures, VVO requires no behavioral changes by the customer and has no impact on lifestyle while delivering energy savings across all customer classes.

The project at Ameren began in June and is expected to go live this year.

About DVI
DVI is the leading provider of Volt/VAR optimization technology, providing solutions for energy efficiency, demand response, Volt/VAR control, and system reliability. DVI's patented approach plans, manages and validates utilities' grid optimization programs while delivering significant savings to both utilities and their customers (U.S. patents 8437883, 8577510, 9354641, 9563218, 9582020, and other U.S. and international patents pending). For more information about DVI, visit www.dvigridsolutions.com.

About Dominion Energy
Dominion Energy (NYSE:D) is one of the nation's largest producers and transporters of energy, with a portfolio of approximately 26,200 megawatts of generation, 15,000 miles of natural gas transmission, gathering and storage pipeline, and 6,600 miles of electric transmission lines. Dominion Energy operates one of the nation's largest natural gas storage systems with 1 trillion cubic feet of storage capacity and serves more than 6 million utility and retail energy customers. www.DominionEnergy.com

About Ameren Illinois
Ameren Illinois delivers energy to 1.2 million electric and 816,000 natural gas customers throughout central and southern Illinois. Our service territory covers more than 1,200 communities and 43,700 square miles and our mission is to power the quality of life. For more information, visit AmerenIllinois.com. Follow us on Twitter @AmerenIllinois and Facebook.

SOURCE Dominion Energy