Energy + Environmental Economics

Energy and Environmental Economics (E3)

Ethree

Executive Assistant

Bachelor's Degree and 3+ years of experience as an office administrator, office assistant, or executive assistant; ability to work onsite 5 days a week; exceptional communication and organizational skills; discretion; MS Office and SharePoint familiarity; event coordination experience preferred.

PLEXOS Modeling Consultant

1-3 years with PLEXOS; 3-5+ years energy field; master's or PhD in engineering/economics/CS/optimization/public policy; strong modeling and communication.

Title	Location	Date
Executive Assistant Full Time · $73K-$104K/yr · 3+ YOE San Francisco, California, United States · Onsite	San Francisco, California, United States Onsite	Feb 17, 2026
PLEXOS Modeling Consultant Full Time · $97K-$135K · 1+ YOE San Francisco or Boston or Calgary or Denver or New York City · Hybrid	San Francisco or Boston or Calgary or Denver or New York City Hybrid	Oct 17, 2025

Activities	energy market forecastingelectricity resource planningclimate policy analysisutility regulatory advisoryenergy asset valuation
Headquarters	US
Industries	EnergyProfessional Services
Name	Energy + Environmental Economics
Employees	100
Type	Public
Parent Company	Willdan Group
Tagline	Strategic consulting and economic analysis for the energy sector.
Founded	1,989
Website	ethree.com
Stock Exchange	NASDAQ
Stock Symbol	WLDN

Energy + Environmental Economics

About Energy + Environmental Economics