Mesquite Lake · Imperial County, California. A staged industrial-energy AI campus that pairs firm onsite generation with liquid-cooled compute, heat recovery, and engineered ground thermal storage — on the footprint of a retired energy site.
The anchor coordinate sits on the old Mesquite Lake energy park — home to a 21 MW biomass unit that ran from 1987 to 2008 — inside Imperial County's ~5,100-acre Mesquite Lake Specific Plan, an area zoned specifically for job-producing industrial and energy uses, away from homes.
The Specific Plan exists precisely for heavy energy infrastructure. This is a conformance review, not a greenfield rezoning fight — and the retired plant makes it a brownfield redevelopment story.
Imperial Irrigation District serves both power and water here. A 150 MW load with grid-support storage is system-relevant for IID — a partnership conversation, not a rate application.
Central Imperial County sits amid gas infrastructure and the Salton Sea geothermal region — kept as a strategic partner resource, isolated from the data-center cooling loop.
| Reference point | Distance | Relevance |
|---|---|---|
| City of Imperial | 5.1 mi | Workforce, services |
| Brawley | 5.3 mi | Workforce, IID operations |
| El Centro | 8.3 mi | County seat, logistics |
| Brawley geothermal field | 8.8 mi | Regional energy partner |
| Salton Sea KGRA | 21.4 mi | Strategic resource — not a Phase 1 cooling assumption |
Three 50 MW liquid-cooled data halls. A central thermal plant bridging compute heat, recovered gas heat, and the ground. A 150 MW generation island whose waste heat drives absorption chilling. Closed-loop borehole thermal storage — no brine, no groundwater contact.
Direct-to-chip warm-water loops, CDU isolation, segmented electrical distribution. Same cooling standard every phase.
Heat exchangers, storage tanks, absorption chillers driven by recovered gas heat, and controls that dispatch heat among BTES, dry coolers, and the halls.
Closed-loop borehole arrays buffer daily and seasonal heat. Designed as engineered heat rejection — not assumed to swallow 150 MW alone.
Five gates, nine parallel workstreams. Nothing advances past its gate without a signed memo — and the incentive workstream runs from day one, because credits are won or lost on construction-start timing and procurement paperwork, not engineering.
Option, APNs, title, mineral & geothermal rights, Phase I ESA
IID studies opened, gas screen, water basis, thermal test wells
CEQA/CEC path locked, air permits scoped, safe-harbor plan
Capital committed, offtake LOI, credit-transfer LOIs
Phase 1 energized, then matched 50 MW increments
IID interconnection + air permitting + long-lead electrical gear (transformer and switchgear lead times run 24–36 months). Everything else is deliberately parallel. A disciplined ITC safe-harbor purchase at G2 locks credit eligibility early.
Verified against post-OBBBA federal law and current California statute (July 2026). The retired energy site is not just a story — it is a tax asset.
| Incentive | Applies to | Value |
|---|---|---|
| Section 48E ITC — thermal energy storage | BTES borehole fields, storage tanks, heat-pump integration (explicitly named in the IRS regulations) | 30% base with wage/apprenticeship compliance; phase-out only begins for construction starting 2034 |
| + Energy community adder | Brownfield category — the retired 1987–2008 biomass site is the claim | +10 points |
| + Domestic content adder | Per procurement package | +10 points |
| 48E ITC — battery storage | BESS for ride-through, black-start, grid support | 30% + adders; FEOC-compliant sourcing required |
| 48E ITC — fuel cells | Natural-gas fuel cells, construction starting after 12/31/2025 | Flat 30%, no wage conditions — the only ITC path for gas-fueled generation |
| Bonus depreciation | Servers, CDUs, generation, thermal plant | 100%, permanent (post 1/19/2025) |
| §6418 transferability | All project ITCs | Credits sell for cash — no traditional tax equity required |
| CA partial sales-tax exemption (RTC 6377.1) | Power generation, storage & distribution equipment incl. special-purpose buildings | 3.9375% off qualifying purchases through 6/30/2030 |
| CA Competes · NEC · WOTC | Jobs and investment commitments | Negotiated credit + per-hire credits |
| Opportunity Zones 2.0 | Sponsor equity, post-2027 tranches | New rural-weighted map effective 1/1/2027; 30% basis step-up for rural funds |
| New Markets Tax Credit | Community-facing scope in distressed tracts | ~39% of qualified investment over 7 years |
Since the July 2025 reconciliation act, natural-gas fuel cells earn a flat 30% ITC while turbines and reciprocating engines earn 0% — and fuel cells largely sidestep combustion air permitting. A fuel-cell base tranche with engine peakers later is now the credible hybrid.
DOE's retired-energy-infrastructure loan authority (now Energy Dominance Financing) requires conditional commitments by September 30, 2026. The retired-biomass-to-AI-campus framing is close to a textbook fit — the pre-application consultation should happen this month.
Planning-level screens verified 2026-07-09 against post-OBBBA law. Nothing on this page is tax, legal, or investment advice; every item requires confirmation by qualified tax counsel.
Structure the project so every entity captures the incentives it is built for — then run the 30-day list.
Site option and parcel; positioned for Opportunity Zone equity if the tract is designated on the 2027 map.
Gas island, BESS, BTES, thermal plant. Claims the ITCs, sells credits for cash, borrows against federal financing, captures the CA sales-tax exemption.
Data halls and IT under a power-and-cooling services agreement with PowerCo. Captures bonus depreciation and 179D.
No supportable site-control path · IID upgrades priced beyond economics with no phasing fix · no firm gas path and fuel-cell-only economics don't close · remediation beyond brownfield tolerance · thermal response testing forces a dry-cooler-primary redesign. Each gate memo names its kill criteria before money moves.