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US Solar Industry Faces Turmoil After Tax Credit Repeal

Jonas Muthoni

Published · 3 min read

Congress passed the One, Big, Beautiful Bill, ending key solar tax credits. This change hit the solar market hard. Projects now face delays. Manufacturing plans may stall. And installers must rethink their costs. Still, many leaders stay hopeful about solar’s future.

Tax Credit Repeal Shocks the Sector

Before the election, most experts expected the Inflation Reduction Act would last. They said repealing it would cost too much. Red states had already invested heavily. Yet Congress cut:

  • EV and home energy credits this year and next
  • Wind, solar, hydrogen credits after 2027
  • Most other energy credits by 2035

Without the repeal, those uncapped credits could have cost taxpayers over $100 billion per year by the 2030s. Now the industry must adapt to a leaner subsidy landscape.

Residential Solar Scrambles to Cut Costs

In home solar, adding one customer can cost around $10,000. That is one-third of a typical system price. So installers are racing to lower expenses.

Enphase plans to:

  • Boost its SolarLead Factory platform
  • Expand Solargraf design tools
  • Streamline customer acquisition

These moves aim to cut sales and marketing costs. And they show how firms must innovate or risk losing market share.

Regulatory Tightening Under Trump

On July 7, President Trump signed an order to tighten solar rules. The Treasury must now:

  • Raise the “begin construction” threshold to 50% of project costs
  • Shorten the four-year safe-harbor period and ban extensions
  • Require regular re-certification of ongoing work
  • Enforce foreign-entity restrictions, especially on Chinese suppliers

Under prior guidance, developers could claim credits with just 5% spending or minimal site prep. Now, firms must show real work and clear supply chains. This shift aims to stop abuse and ensure credits match true investment.

Solar Gold Rush Before Phaseout

After the bill passed, companies rushed to buy panels early. In June and July, 660 MW of panels traded on Anza’s platform. That beat the prior five months combined. Firms feared new rules would spike costs.

Yet this rush has limits. After July 2026, no new projects qualify for credits. And tighter supply rules will raise prices. The frenzy may boost sales now, but it could lead to a slump later.

Domestic Manufacturing Under Pressure

Tariffs on imports aim to help US factories. But domestic panels cost up to 50% more per watt than foreign ones. Many new plants counted on an extra credit for US-made equipment.

Panel SourceCost per Watt
US-made$0.60
Foreign-made$0.40

Without the “US-made” adder, many factories may not break even. And once tax credits vanish, developers may return to cheaper foreign suppliers. That could undercut domestic growth.

Economic Forecasts and Market Impact

A Wood Mackenzie study forecasts residential solar growth will be 46% lower by 2030 than earlier estimates. High costs and weak incentives will slow adoption. Still, power demand and rising electricity prices offer hope. Utilities and businesses still need new capacity. And factories that survive may benefit from long-term market needs. First Solar beat Wall Street’s Q2 earnings. Its CEO said policy and trade shifts have helped its position. But smaller firms may struggle to match that success.

Long-Term Outlook

Despite short-term pain, solar’s core economics remain strong. Panel costs fell by over 80% in the last decade. Solar is now among the cheapest power sources in many states.

To thrive, companies must:

  • Cut overhead and sales costs
  • Secure stable financing
  • Build flexible supply chains
  • Stay ahead of rule changes

Those that adapt can still lead the clean energy shift.

Key Takeaways

  • Tax credits cut early: Solar, wind, hydrogen credits now end sooner.
  • Cost pressures rise: Installers must slash customer-acquisition costs.
  • Rules tighten: Higher construction thresholds and stricter reviews.
  • Gold rush peaks: Panel buying surges before credits expire.

Mixed outlook: Growth slows, but solar remains cost-competitive.

Jonas Muthoni

Jonas Muthoni

Jonas Muthoni is Editor-in-Chief of Microgrid Media, where he oversees reporting and analysis on microgrids, energy storage, distributed energy resources, data center power demand, grid modernization, resilience, renewable energy, and electricity policy and markets. His work focuses on the infrastructure, technologies, and regulatory developments reshaping the power system. As Editor-in-Chief, Jonas leads Microgrid Media’s editorial strategy and standards, including story selection, source verification, technical accuracy, and the development of original reporting and analysis. His coverage draws on regulatory filings, government records, utility and company disclosures, technical documentation, and independent industry sources to explain significant developments across the evolving energy system.