Read up before you buy.
What HB 340 says, what the kits cost to run, and what the install actually looks like. Written for Utah homeowners.
Pillars
HB 340: Utah's plug-in solar law explained
Utah HB 340 (2025) made plug-in solar under 1,200W permit-free, utility-approval-free, and interconnection-agreement-free. What's legal, what's not.
Inside a plug-in solar kit: how it actually works
DC, AC, microinverters, watts, oversizing, and why Utah's 1,200W cap is on the inverter — not the panels. Plug-in solar technology in plain language.
Rocky Mountain Power: the smart meter and what to expect
What to do before you plug in: request a bidirectional smart meter from RMP, what their visit looks like, and what your bill will show.
Is plug-in solar safe?
Plug-in solar is safe — here's the one thing to know about where you plug it in. Outdoor outlet defaults, edge cases, and how anti-islanding works.
The savings math: $1,299–$1,899 vs $3,600+ rooftop add
The honest math on plug-in solar ROI in Utah. Real Rocky Mountain Power Schedule 1 numbers, tier-2 shaving, and how rate increases compress payback.
More guides
How it works: from order to first kWh
Order, deliver, mount, plug in. Plug-in solar in Utah from end to end — install it yourself or have us do it for you.
Frequently asked questions
Answers to the most common questions about plug-in solar in Utah, HB 340, the kits, install options, and Rocky Mountain Power.