GoSolar Reapplied for its 1,500 MW Sun Mesa–Cholla “Power-to-HPC” Project in Arizona

GoSolar has officially resubmitted its interconnection application with Arizona Public Service (APS) for its flagship Sun Mesa–Cholla project, aiming to deliver over 1,500 MW of solar and 1,500 MW of battery energy storage (BESS) for more than 12 hours storage capacity through a behind-the-meter (BTM) system and received its APS Queue Number. Additionally, the project includes the power flow model to withdraw up to 1,500 MW from the APS grid, supporting a 3.0 GW-peak high-performance computing (HPC) data center campus for its redundancy power needs planned for northeast Arizona on more than 1,000 acres of private land for sale to HPC´s. Strategically located near APS’s Cholla Power Plant—one of the largest transmission hubs in northern Arizona with 230 kV, 345 kV, and 500 kV infrastructure—the Sun Mesa–Cholla site offers unmatched advantages for largescale power users such as data centers, Bitcoin mining operations and hydrogen productions.  Key benefits of the project site connecting to APS, SRP, TEP in WECC and to CAISO includes: 

• High-Elevation Climate: Situated above 5,400 feet, the site benefits from a cooler average annual temperature of 57°F (14°C), ideal for reducing HPC cooling loads and improving operational efficiency of the GigaWatt-scale solar and energy storage system. 
• High sun radiation: On a slow slope with approx. 1% towards south on very flat private land, the Sun Mesa–Cholla site is in one of the highest sun radiation areas in the US.  
• Water Access: Located atop the Coconino Aquifer, the project offers access to substantial water reserves, once used for open-loop cooling and now repurposed for high-efficiency hydro-cooling systems for next-gen data centers and H2 storage. 
• Fiber Connectivity: The site lies adjacent to one of the largest long-haul fiber optic corridors (Dallas–Las Vegas), with two additional dark fiber routes nearby (Phoenix-Albuquerque & Flagstaff) ensuring scalable bandwidth for HPC and digital infrastructure. 
• Strategic Incentive Zones: The site is designated as part of an Energy Community, a Qualified Opportunity Zone (QOZ) (through 2026), and a USDA-eligible rural development area, enabling layered economic / tax incentives and farmer benefits. 
• Accelerated Buildout Timeline: Leveraging its independent microgrid infrastructure, integrated large-scale energy storage and a natural gas pipelines onsite the project enables a significantly faster deployment—delivering partial power supply of 50 MW or more to future onsite campus clients from its onsite resources within 4 to 24 months.

The company is open to new co-location partnerships, land sales, and project acquisition offers from IPP´s, utilities or long-term infrastructure owner-operators. GoSolar has already begun negotiations with hyperscale data center developers and major Bitcoin mining firms for onsite PPA´s, EPC contractors, independent power producers (IPPs), and institutional investors. GoSolar specializes in GigaWatt-scale industrial renewable energy development across Arizona, Iowa, and Missouri. Its projects are designed for co-located solar + storage and BTM microgrid solutions, tailored to meet the needs of high-load consumers including HPC, BTC mining, hydrogen and ammonia production, and e-fuels manufacturing. Additionally, GoSolar’s grid-scale energy storage is engineered to support grid reliability through frequency control ancillary services (FCAS) and demand response capabilities for utilities and grid operators.

GoSolar | https://gosolar.us/