Core to RioSol’s 17-year development history has been understanding the immense environmental responsibility for a project of this size and minimizing any impact. RioSol was initially permitted as the SunZia Project’s second 500kV line. A Federal right-of-way grant was issued for both transmission lines after completing an extensive Environmental Impact Statement (EIS) process, issued in 2015 and 2023, pursuant to the National Environmental Policy Act.

RioSol will traverse approximately 550 miles through New Mexico and Arizona. Where possible, the route will be located near other existing transmission lines. Structures will typically be 135 feet in height. Tower heights will vary from 100 to 190 feet in height depending upon terrain and will be constructed with materials that complement their surroundings, minimizing their visibility from a distance. When needed, RioSol will utilize aerial-only (helicopter) construction techniques to minimize ground disturbance in specific areas.

RioSol’s final location was determined after extensive environmental reviews required at the federal and state levels, coordination with state land departments, and other entities with facilities near the RioSol line.In addition, engaging and working with landowners is a critical part of our process to determine routing. 

The RioSol team works closely with landowners to ensure fair compensation for right-of-way easements. Our land team also works with the local community to conduct outreach through public open house events and local meetings. RioSol strives to benefit the lives of all who are investing various resources to make this project possible.

This route was selected as the BLM preferred alternative because it will:

RioSol is dedicated to minimizing impacts to wildlife and preserving natural habitats that may be affected by the project. Funding and conducting important biological and wildlife studies have resulted in creating mitigation, restoration, and preservation plans that will guide our approach to construction and operations. These resources and land management programs were selected as part of an extensive Environmental Impact Statement (EIS) process based on federal regulatory requirements and policies, concerns of the lead and cooperating agencies and/or issues identified during scoping.

The resources evaluated in the Environmental Impact Study of RioSol’s Transmission Line include:

Energy infrastructure has an enduring presence on both physical and cultural landscapes. RioSol works closely with federal and state agencies, scientists, and planners to ensure regulatory compliance for the establishment of large-scale generation and transmission energy development. We know the long-term success of energy resiliency for future generations depends upon effective engagement with all stakeholders and stewards of shared cultural and natural heritage areas. RioSol is, at its core, a family business and RioSol is driven by local people with a passion for balanced development, community engagement, and lasting energy solutions.

Local Community Building

RioSol strives to be a good neighbor and find mutually beneficial solutions to our energy futures. Engaging and working with landowners is a critical part of our process. We have invested millions of dollars to preserve unique cultural and natural resources important to local communities.

Tribal Stakeholder Engagement

RioSol is committed to proactively listening to Tribal voices and perspectives through meaningful dialogue and knowledge sharing. Our goal is to build trusting relationships while remaining respectful of Tribal sovereign rights to government-to-government consultation under Section 106 of the National Historic Preservation Act.

Environmental Justice

RioSol is committed to building long-term relationships across remote and marginalized communities in pursuit of equitable collaboration in all stages of energy development. We strive to ensure fair compensation and benefit the lives of all who are investing to make this project possible.