HB 340 — Plug-In Solar Device Amendments
Sponsored by: Rep. Raymond Ward
Enacted — Signed into Law
pipeline complete
Expected Timeline
Effective immediately since March 2025.
Creates a new legal category for plug-in solar devices up to 1,200 watts. Exempts them from utility interconnection agreements. Allows self-installation without permits. Permits limited backfeeding of excess energy. No new subsidies or tax credits — purely a deregulation measure.
Buy a UL-certified plug-in solar kit (up to 1,200W), install it yourself on a balcony or yard, and plug it into a standard 120V outlet. No permits, no utility approval, no professional installation required.
Systems over 1,200W still require standard interconnection. No state rebate or tax credit is available under this law. Traditional rooftop systems still require permits.
No state rebate under HB 340 (deregulation-only law). Net metering credit available via Rocky Mountain Power. The federal 30% ITC (Section 25D) expired December 31, 2025 and is no longer available.
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This information is for educational purposes only. Laws change frequently. Consult a local attorney for legal advice specific to your situation.