SOVEREIGNTY DESK · CONCERN

Utility Scale Solar is Booming in Texas, But Residential Ratepayers Still Pay 3x the Grid Price

Black & Veatch completed Mitsui's 150 MW Three W Solar project in Texas, marking another utility-scale win in ERCOT. Meanwhile, residential solar installed prices remain stuck at $2.50, 3.50/W, three times the per-watt cost of the utility projects now flooding the grid, and the gap is structural.

By June Park , solar economics desk · Sep 30, 2026 · 8 receipts · Checked by Ezra

Black & Veatch announced substantial completion of Mitsui's Three W Solar facility, a 150 MWdc (110 MWac) project near Hillsboro, Texas, on approximately 875 acres.^[1] The facility received ERCOT approval and is now operational, capable of serving roughly 45,000 homes. It is Mitsui's first utility-scale solar entry into the United States, and it reflects a larger pattern: utility-scale solar is being built faster and cheaper than ever, while residential solar prices remain stubbornly inflated.

The mechanism is simple: a utility developer or major corporation buys solar hardware at roughly $0.60, 0.90/W, stacks it with standardized permitting, construction crews working across dozens of sites, and minimal customer acquisition cost. A homeowner buying a residential system pays $2.50, 3.50/W for identical hardware, because the installer must acquire that one customer, hire local crews, navigate parcel-by-parcel permitting, and finance the customer themselves, or through a lender who charges a dealer fee of 15, 30% buried in the loan principal. The hardware is the same. The soft costs are what swallow the delta.

This matters now, with the federal residential tax credit repealed for systems placed in service after December 31, 2025. For eight years, the 30% Section 25D credit quietly absorbed a large share of that premium, making a $30,000 turnkey system tolerable by handing back $9,000. That subsidy is gone. What remains is the raw price negotiation, and the DIY and cheap-install paths now matter more, not less. A homeowner can pursue a DIY system at $1.20, 1.60/W (racking, panels, inverter, wiring, labor), accept a turnkey installation at $2.50, 3.50/W, or finance through a solar loan whose dealer fee invisibly inflates the principal by 25, 30%, making the true cost of credit far higher than the advertised 3.99, 6.99% APR.

The honest path post-25D: get the cash price from the installer, then ask for the financed price, and calculate the actual cost of credit between them. Compare that against a home equity line of credit or credit union green loan where the rate is the rate. Track state and utility incentives in DSIRE, they now carry all the subsidy load. Run your payback math under your actual tariff and export rate. If you live in a state or utility still offering full-retail net metering, the math survives; under hostile net billing like California's NEM 3.0, where exports are credited at 3, 8 cents per kWh instead of 30+ cents, batteries become mandatory and payback stretches unless you optimize for self-consumption. Three W Solar reached commercial operation because Mitsui could aggregate risk across hundreds of megawatts and did not have to negotiate a rate that pays back in seven years. You do. The installed-price premium is policy, not physics.

The alternative

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Residential solar soft costs cannot be eliminated by market forces alone; the permit-by-permit, customer-by-customer model is structural. States and utilities can lower the premium by: adopting streamlined permitting with standardized roof documentation and online approval (Connecticut and Hawaii have pilot programs); allowing standardized installer licensing to work across state lines; requiring solar lenders to itemize dealer fees separately on the truth-in-lending disclosure; and maintaining or recovering legacy net-metering tariffs, the export rate is the single largest input, and every point down stretches payback by roughly a year. DIY and standardized-install operators (Sunrun's recent shift toward white-label installer networks, Tesla Energy's simplified permitting playbooks) show the path; policy should enforce transparency and cap dealer fees at 5, 8% of system cost, inline with standard mortgage origination fees.

See the working →

Levers · streamlined solar permitting · dealer fee disclosure and caps · net metering tariff preservation · installer licensing reciprocity

June Park · Solar Economics Desk, Sovereignty Desk

June runs the numbers on going solar — what it really costs, what it really returns, and where the traps are hidden. The spreadsheet, she says, is the weapon: run it honestly and the monopoly still loses. She benchmarks American install prices against countries paying a third as much for identical hardware, decodes the dealer fees and escalator clauses buried inside 'low APR' solar loans, and never quotes a payback period without stating the tariff and assumptions behind it. A number without its inputs, in her view, is just marketing.

Edited by Dana; fact-checked by Ezra ; signed off by Margaret. Full profile →

Receipts Every claim, traced · 8

[1] Black & Veatch - Black & Veatch completes Mitsui's first U.S. utility-scale solar project in Texas

[2] Black & Veatch completes Mitsui’s first U.S. utility-scale solar project in Texas

[3] Solar

[4] Avangrid’s largest solar project helps address Texas data center energy demand

[5] Repsol achieves commercial operations at its 825 MW Pinnington solar facility in Texas

[6] Sustainability Report

[7] Mitsui’s Three W Solar facility in Texas achieves completion

[8] Black & Veatch completes Mitsui’s first U.S. utility-scale solar project in Texas

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