Savings energy by reducing voltage, better known as Conservation Voltage Reduction or “CVR”, has been an energy savings measure used by power utilities for years.  During adverse power-grid conditions, when demand exceeds supply, utilities will implement a grid wide voltage reduction to lower demand helping to avoid a wide spread power outage.  With the rising cost of electricity and the global energy crisis, saving energy by reducing voltage has become a viable energy conservation measure.

Legend Power has taken a proven energy saving solution that has been used by power utilities for years, and adapted it for the commercial building market. Legend’s voltage management system gives building owners and operations the ability to control and reduce their supply voltage and decrease electrical energy consumption.

The theory behind savings energy by reducing supply voltage is well understood.  If you are interested in conservation voltage reduction, we encourage you to visit the links below.  If you have any further questions about how we help our customers save, please feel free to contact us.  We are always happy to talk about how our product performs in the field.

IEEE – Conservation Voltage Regulation: An Energy Efficiency Resource

With the adoption of smart grid technologies, Conservation Voltage Reduction (CVR) promises greater efficiencies than ever before. But because its benefits accrue mainly to customers and its costs to utilities, CVR is not being adopted as widely as it could be. Allowing CVR energy savings to be treated as a certified energy efficiency resource can change that picture for the better.

For many years, electric utilities have achieved load reductions by reducing the voltage delivered to air conditioners, home appliances and industrial machinery – a technique known as Conservation Voltage Reduction (CVR)…

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Written by Kellogg Warner and Ron Willoughby

U.S. Department of Energy -Evaluation of Conservation Voltage Reduction (CVR) on a National Level

This report has developed an estimate of the benefits of Conservation Voltage Reduction (CVR) for individual distribution feeder types, as well as an extrapolation of the benefits on a national level. Simulations were conducted using the GridLAB-D simulation environment, developed at the Pacific Northwest National Laboratory (PNNL), as well as the Taxonomy of Prototypical Feeders developed under the Modern Grid Initiative (MGI), now the Modern Grid Strategy (MGS). Based on the results of this report there are seven high level conclusions:

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Pacific Northwest National Laboratory, KP Schneider, FK Tuffner, JC Fuller, R Singh

Green Tech Media – Voltage Management: A Hidden Energy Efficiency Resource

Conservation voltage reduction (CVR) is a proven technology that has been used by utilities on a limited scale for the past two decades. By better managing distribution system voltages, utilities can improve efficiencies, realize significant energy savings, and reduce demand.

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DNV KEMA consultants – Is Conservation Voltage Reduction truly energy efficiency?

…Conservation Voltage Reduction (CVR) is a proven technology for reducing energy and peak demand. It is a measure implemented upstream of end service points in the distribution system so the efficiency benefits are realized by consumers and the distributor. This is done without any intervention on the part of consumers. CVR is implemented by controlling the voltage on a distribution circuit to the lower end of a tolerance band, either defined by ANSI C84.1 (114–126 volts) or another target range. Conservation then occurs on the circuit when certain end-use loads draw less power when voltage is lowered…

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DNV KEMA consultants – Will Gifford