Cost of service and rate design
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As Massachusetts’ Grid Evolves, So Must Its Electric Rate Designs

March 11, 2025

This post has been updated to include the Long-Term Ratemaking Study. Widespread building and vehicle electrification are key parts of the …

Avoided Costs and the Benefits of Distributed Resources for an Evolving Grid

December 3, 2024

The urgency of climate change and emissions commitments, along with growing and shifting loads, changing customer needs, and emerging technologies, …

E3 Wins 2024 Excellence Award from ESIG

April 2, 2024

For the second consecutive year, the Energy Systems Integration Group (ESIG) recognized E3’s Arne Olson and the broader E3 team by awarding …

New CPUC Proposed Decision on an “Income-Graduated Fixed Charge” draws on E3’s Publicly-Available Electric Rate Design Tool

March 28, 2024

On March 27, the California Public Utilities Commission (CPUC) released a Proposed Decision that would change how residential customers pay …

E3 Evaluates the Benefits and Costs of Customer Solar under Net Energy Metering in Washington

January 3, 2024

E3 was retained by a large group of public and investor-owned utilities in Washington to evaluate the benefits, costs, and …

E3 Publishes “Rate Design for the Energy Transition,” a New White Paper for the Energy Systems Integration Group

April 10, 2023

Electric system planning and operations are fundamentally changing, but retail rate designs remain stuck in the past. As the bulk …

Customer Sited Solar PanelsAlternative Ratemaking Mechanisms for DERs in California – E3 Whitepaper Proposes Framework for a Net Energy Metering (NEM) Successor Tariff

February 12, 2021

Utility customers in California are eligible for a state program, called Net Energy Metering (NEM), that applies to customers who …

E3 Launches Advanced Utility Rates Group

November 16, 2020

The energy industry is undergoing a drastic transformation as a result of increasing commitments to decarbonization goals. To help utility …

E3 Supports Xcel Energy’s Minnesota Performance Incentive Mechanisms for Decarbonization

November 13, 2020

In consultation with Xcel Energy, E3 recently created a performance-based ratemaking proposal for Xcel Energy’s November 2 filing of a …

E3 Finds up to $5 Billion in Benefits from EV Adoption in New York

April 24, 2019

Electric vehicle (EV) deployment in line with New York’s ambitious goals can deliver up to $5.1 billion in societal benefits …

E3 Develops Rate Structures for Widespread Transit Electrification

November 21, 2018

In a recent study for the California Transit Association (CTA), E3 found that electric rate structures optimal for managed, “smart” …

E3 Analysis Highlights Importance of Dynamic Rates for DER Customers

September 20, 2018

In their recent evaluation of California’s Self-Generation Incentive Program (SGIP) for customer-sited energy storage projects, Itron and E3 found that …

E3 Experts to participate in the 3rd EVs & the Grid Summit

October 11, 2017

Nancy Ryan, Eric Cutter, Michele Chait, and Lucy McKenzie will participate in the 3rd EVs and the Grid Summit in …

E3 Experts Present on Rate Design and Smart Charging of Electric Vehicles

July 5, 2017

E3 Director Michele Chait and Senior Consultant Lucy McKenzie spoke about rate design for electric vehicles and smart charging at …

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