The Trump polysilicon tariff takes effect December 4, 2026 — just ~95 days away. Connecticut solar panel costs rise after that date. Here's exactly what to do before the deadline to lock in current pricing.
| System Size | Estimated Current Cost | Estimated Post-Tariff Cost | You Pay More |
|---|---|---|---|
| 5 kW (small home) | ~$9,000 | ~$12,500 | +$3,500 |
| 7 kW (average CT home) | ~$12,600 | ~$17,640 | +$5,040 |
| 10 kW (large home) | ~$18,000 | ~$25,200 | +$7,200 |
*Module cost portion only. Total system cost includes installation, inverters, permitting. Based on industry analysis (Canary Media, Raymond James) — actual figures vary by installer and equipment.
Connecticut has the 3rd most expensive electricity in the continental US — averaging ~30¢/kWh all-in. Every month you don't have solar, you're paying premium rates to your utility.
Eversource filed for an 18% rate increase in July 2026, pending PURA approval. If approved for 2027, your electricity costs go up even further — making solar ROI even stronger.
Current supply rates (Jul–Dec 2026): Eversource 11.57¢/kWh, UI 11.99¢/kWh. Solar locks in a fixed rate below the all-in utility average for 20+ years.
The federal residential solar tax credit expired January 1, 2026. There's no 30% federal credit waiting to absorb the tariff cost increase.
According to the White House proclamation (August 4–6, 2026), the US share of global polysilicon production fell from roughly 50% in 2005 to under 2% in 2024. The administration views near-total dependence on foreign polysilicon — primarily from China — as a national security risk. The Section 232 order is designed to rebuild domestic manufacturing capacity.
There is a longer-term offset: as domestic manufacturing scales up over the next several years, prices could moderate. But that takes time — the proclamation itself sets a January 2029 deadline for companies to begin construction on approved domestic manufacturing projects. In the interim, homeowners who install before December 4, 2026 avoid the tariff entirely.
The tariff window is ~95 days away. Most installers can hold pricing with a signed contract. Getting 2–3 quotes now creates leverage and locks you in before the import window closes.
Ask your installer: "Can you confirm in writing that my equipment will be ordered at pre-tariff pricing?" Get this in writing before signing.
Typical residential installs take 4–8 weeks from permit to activation. If you sign this week, your installer has until late October to order equipment — well before the tariff date. Don't wait until October.
Connecticut homeowners have ~95 days to act before the tariff window closes. Get quotes from vetted Connecticut installers now.
Get a Free CT Solar QuoteDisclaimer: This page is for informational purposes only and does not constitute financial or legal advice. Solar system costs and savings vary based on installation specifics, shading, orientation, utility rates, and other factors. Consult a licensed Connecticut solar installer for a personalized quote. Tariff analysis based on publicly available executive order details from August 4–6, 2026. Data current as of August 31, 2026.