Conservation Voltage Reduction - CVR

Conservation Voltage Reduction - CVR

Conservation Voltage Reduction (CVR1) is a proven technology for reducing energy and peak demand. By more fully utilizing existing distribution automation equipment, smart grid technologies, and communicating with meters and switchable devices, capital purchases can be avoided or delayed.

In addition, CVR has the potential to be an Energy Efficiency (EE) resource by helping utilities maximize returns while meeting EE goals.

AEG offers the following planning services designed to guide the CVR program development process:

CVR Business Case and Regulatory Planning

AEG can help you to cultivate resource plans and business cases in support of CVR program development. Our wide ranging services include financial models, benefit-cost analysis, regulatory strategies, EE portfolio integration strategies and CVR program launch cycles.

  • CVR knowledge transfer.
  • CVR potential and benefit-cost analysis.
  • Verifiable cost recovery models.

Knowledge Development
Foster an institutional knowledge base and consensus views on how CVR can be used to help meet company objectives and customer needs.

Business Case Development
We will work with EE, T&D and utility corporate staff to develop financial models and cost-recovery strategies for implementing CVR.

CVR Potential Studies
AEG’s team will produce CVR potential estimates based on preliminary assessment of T&D infrastructure, current operating practices, and customer demographics.

As-Is System Assessment

Applied Energy Group offers evaluation of existing performance initiatives to serve as the basis for CVR program development.

Our approach delivers:

  • As-is distribution system assessment and preliminary CVR technology roadmap.
  • Recommendations on which CVR initiatives and feeders offer the highest potential returns.
  • Feeder and customer load data sets for what-if simulation analysis
Data Collection and Review Elements
  • T&D components
  • Load mix
  • Feeder loadings, load types and load factors
  • Cost of generation (peak, off peak, emergency)
  • Seasonal variations
  • Representative substation and distribution feeder designs
  • Voltage records for distribution feeders
  • Voltage records for end users
  • Existing IEDs, smart meters, sensors, communication
  • Distribution automation (DA) initiatives
  • CVR initiatives
  • Voltage performance records
  • Strategic projects recently completed, in progress, and planned
  • D-SCADA systems
  • Amounts, types and locations of distributed generation
  • Availability of distribution system data
  • System modeling tools
  • Existing computer models
  • Formats

CVR Model Development and What-If Simulation Analysis

The AEG method will establish computer models for selected distribution feeder circuits and quantify benefits from the highest potential feeders using what-if simulations.

Our approach develops distribution circuit models using GridLAB-D or OpenDSS software packages. We identify the highest potential feeders and strategies for each. Then, using the collected data we create a case study list to guide the simulations and perform simulations for each case.


  • Documented lessons learned from CVR pilots, including methods for quantifying results.
  • Case study list and simulations for each case.
  • Comprehensive report summarizing quantified results based on metrics from industry lessons-learned.
  • Training on analysis techniques.

Pilot Program Development

AEG can assist your group with the development of circuit-specific pilot projects. Calling upon our expertise we will establish measurement, verification, and documentation processes. We will identify target circuits and work with utility and vendor partners to design and implement CVR strategies and implement verification processes.

  • Pilot program design document.
  • System design and procurement specifications
  • Project management services.
  • Program measurement and verification plan.
  • Comprehensive report.

1. CVR is also referred to as Conservation Voltage Regulation, Conservation Voltage Optimization (CVO), or Volt/Var Optimization.

For more information, please contact:

Robert Obeiter 
Executive Vice President