Senior Director
Amparo Nieto

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Amparo Nieto is a Senior Director in E3’s cost of service and rate design and distributed energy resources practice areas. She is an economist with over 25 years of experience in the energy industry, both domestically and internationally. Her clients include public and investor-owned utilities, state regulatory commissions, independent system operators and other energy market participants, in the US, Canada, Europe, Latin America, Africa and the Caribbean. Amparo has led assignments involving electricity tariff reforms as well as energy price formation rules in wholesale markets. Her extensive knowledge of markets and best practice mechanisms to improve efficiency under imperfect competition conditions allows her to effectively and defensibly support her clients.  She brings a unique perspective when revisiting traditional utility ratemaking methods and examining innovative utility business models.

Amparo has assisted utilities and regulators with modernized grid efforts, and has developed alternative rates for utility customers with distributed generation, electric vehicles, energy storage and microgrids. She is often retained to provide expert witness services in matters of marginal cost of service studies, avoided cost analysis, and design of optional, advanced rates, ranging from enhanced time of use, multi-part tariffs, to dynamic rate options. She has also authored reports on alternative incentive mechanisms for distribution networks. In New York and more recently New Hampshire, she participated in a large stakeholder proceeding involving the development of pricing mechanisms for distributed energy resources (DERs), focusing on revealing their value to the grid, system-wide and locationally.

Earlier in her career, Amparo was an active advisor in the restructuring of the energy sector in Spain and the development of market rules for energy and open access transmission rates. She has also assisted the Irish energy regulatory commission in the development of market power mitigation rules, and designed parameters of auctions for default electricity service and renewable resources in the US.

Amparo speaks often at industry forums, and currently directs a membership-based utility working group at E3 that discusses rate innovation to optimize expansion of DER technologies.

In addition to her passion for regulatory economics, Amparo enjoys traveling the world, playing guitar and coaching youth basketball.


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