Skip to main content
  • Our products Our products Our products
  • Sustainability Sustainability Sustainability
  • Careers Careers Careers
  • Investors Investors Investors
  • Meet AES Meet AES Meet AES
  • My AES
    Choose your location
    Choose location

    AES Global

    AES Local

    Andes Argentina Brasil Bulgaria Chile Colombia Dominicana El Salvador Hawai‘i Indiana México Miami Valley Lighting Ohio Panama Puerto Rico Vietnam
    Search AES

    Rocky Mountain Solar 500 project

    Rocky Mountain Solar 500 project

    AES’ Rocky Mountain Solar (RMS) 500 solar-plus-storage project is a planned clean energy facility that will incorporate the most advanced solar and energy storage technologies. The project is designed to minimize impact on the local environment and will support Colorado’s clean energy goal of 100% renewable energy by 2040.

    Project overview

    Power generation icon

    602 MW solar plus 250 MW storage capacity


    Enough clean energy to power 173,160 homes annually


    Pueblo County, Colorado, east of I-25

    Project details

    • Developed on 3,300 acres of privately owned and State Trust land

    • Provides clean energy to Xcel Energy customers

    • 2027 estimated operational date

    • Up to 25-year project life with AES as long-term owner operator

    Rocky Mountain Map

    Economic and environmental benefits

    Power generation icon

    Utilizes land near existing electric grid infrastructure to minimize need for new overhead transmission lines

    AES Icon for Safety First: grey hard hat image intersected with half-circle of AES colors

    Will be designed in accordance with the latest applicable codes, safety standards, security, lighting, landscaping and noise requirements

    AES Icon for money: grey dollar sign surrounded by circle of AES colors

    Expected economic benefits include new tax revenue and 300 local jobs during construction and 4 full-time jobs during operations

    • 1.25 million+ MWh of carbon-free electricity each year

    • 981,000 tons of CO2 emissions expected to be offset each year, equivalent to the emissions generated by burning over 100 million gallons of gasoline in one year

    • Project will increase patronage to local businesses and services through an expanded workforce

    • AES cultivates local partnerships with organizations for economic and social impact

    • Low-cost supply of clean energy at a long-term fixed cost over the project lifetime

    • No permanent service requirements for the site, including the use of water and sewer


    AES is deeply committed to working with the community, area leaders, policymakers and regulators to responsibly develop and operate all of its clean energy projects. Our strategic approach is to engage early and often with local stakeholders to share information about the project and most importantly, gather feedback to address issues that may arise. This proactive approach to stakeholder engagement is intended to ensure the local community’s questions and concerns are addressed and enable timely approvals.

    Environmental and technical studies


    AES’ RMS project was studied extensively and carefully planned to have no negative impact on regulated habitats, threatened and endangered species or cultural/historical resources. AES is conducting ongoing consultations with Colorado Parks and Wildlife and U.S. Fish and Wildlife Service to ensure on the sanctity of the land.


    • Cultural and Archaeological survey – Complete

    • Boundary & Topographic survey – Complete

    • Biological Resources review – Complete

      • Site visit to look for presence of threatened and/or endangered species and waterbodies

    • Biological Studies – Complete

      • Wetlands and waterbodies

      • Habitat

      • Sensitive species’ habitat

    • Geotechnical survey - Complete

    • FEMA Flood Plain Analysis – Complete

    • Phase 1 ESA – Complete

    Community engagement

    AES is committed to being a good neighbor to the Pueblo County community. We value our relationships with local partners and community members, and we work diligently to maximize the positive impact our clean energy projects have on local communities. Our projects are intentionally developed to create lasting positive benefits for landowners and to create significant economic opportunities in the community over the life of the project, without burdening existing infrastructure.

    This is why we collaborate with a broad cross section of community leaders from government, local business, education, social services and residents to identify opportunities where AES can provide financial support, volunteerism and other types of partnership to support high-impact initiatives, programs and institutions in the local communities.


    AES current local community engagement

    • Member of Pueblo Chamber of Commerce

    • Member of Pueblo Economic Development Corporation

    • Workforce Development Program created for Coloradan residents for solar installation training and certification

    • Donation to the Pueblo Veterans of Foreign Wars (VFW)

    Contact us

    We want to hear from you! We appreciate your interest in AES’ RMS 500 project.

    Phone: 720-418-8401


    Stay updated

    If you are interested in receiving project updates about the RMS 500 project, please fill out and submit this form.

    Back to top Products
  • Our offerings
  • Your profile
  • Sustainability
  • Clean growth & innovation
  • Our people
  • Community partnerships
  • Sustainability resources
  • Careers
  • Meet our people
  • Search jobs
  • For the press
  • Press releases
  • News & Events
  • Media kit
  • Presentation & webcasts
  • Investors
  • News & events
  • Reports & filings
  • Stock information
  • Investor resources
  • Governance
  • For partners
  • Partnerships
  • Landowners
  • Suppliers
  • About us
  • Our history
  • Our leadership
  • Global x local
  • Contact us
  • Office locations
  • Ethics & compliance
  • Copyright © 2009-2024 The AES Corporation. All rights reserved. Terms of Use | Privacy

    Reproduction in whole or in part in any form or medium without the express written permission of The AES Corporation is prohibited. AES and the AES logo are trademarks of The AES Corporation. 

    Jump back to top