IREC's 2026 Freeing the Grid Report: Why F-Rated States Can Leave $20,000 Solar Systems Sitting Dark for Months

The hidden number on your solar quote

When you get a solar quote, you see panel wattage, inverter brand, monthly payment, and maybe a projected savings number. What you almost never see is the one variable that decides whether your $18,000 to $28,000 system starts producing power in two months or sits dark on your roof for most of a year: your state's interconnection grade.

On May 19, 2026, the Interstate Renewable Energy Council (IREC) released its first major update to the Freeing the Grid scorecard since 2023, grading every state on how fast and how cheaply distributed solar and storage can plug into the local grid. The results are blunt. Only one state earned an A. Over 80% of states scored a C or below. Thirteen states earned an F because they have no statewide interconnection rules at all.

If you are shopping for solar in 2026, this grade is more financially important than most things on your installer's brochure.

What Freeing the Grid actually measures

IREC and Vote Solar evaluate each state against 56 criteria across 10 categories covering cost, efficiency, and transparency of the interconnection process. That means questions like: Is there a statewide application form? Are there hard deadlines for the utility to respond? Are study fees capped? Is the small-residential process distinct from the large commercial one?

The grade matters because interconnection, the formal Permission to Operate (PTO) your utility issues before your panels can push power onto the grid, is the bottleneck between "system installed" and "system earning you money." Until PTO arrives, you are still paying your full retail electric bill while a fully built system sits idle.

The 2026 grade map

Per IREC's official release, here is where states landed in 2026:

• A (1 state): New Mexico

• B (8 states): Arizona, California, Illinois, Maine, Michigan, New Jersey, New York, Oregon

• F (13 states with no statewide rules): Alabama, Alaska, Arkansas, Georgia, Idaho, Kansas, Louisiana, Missouri, Nebraska, North Dakota, Oklahoma, Tennessee, Wyoming

The remaining roughly 28 states sit in the C and D range. Per IREC, roughly one in four states have no statewide interconnection rules at all, which means utility-by-utility discretion on timelines, application fees, and study costs.

Why even a B grade does not guarantee speed

This is where the report gets useful for skeptical homeowners. California earned a B. California also has documented utility behavior that should make any buyer pause.

The California Solar & Storage Association filed a complaint with the CPUC documenting that PG&E and SCE missed state-mandated interconnection deadlines up to 73% of the time, with some sub-steps showing as little as 18% compliance. In March 2026, the state's Joint Legislative Audit Committee voted 13 to 0 to launch a state audit of CPUC oversight of these delays, and 18 state legislators signed a formal accountability letter.

Translation: even in B-grade states, the grade reflects what the rules say, not necessarily what utilities do. The rules give you a fighting chance to complain. They do not guarantee speed.

What the delay actually costs you

In SCE territory in 2026, typical residential PTO timelines look like this, per US Power Solar and confirmed by installer-side data from GreenLancer:

• Solar-only systems: 4 to 6 weeks after install

• Solar plus battery storage: 8 to 12 weeks

• Complex installations: up to 16 weeks

SCE peak rates in early 2026 run $0.34 to $0.38 per kWh. A system that would normally offset around $250 a month in electric bills loses roughly $500 over an 8-week PTO delay and about $750 over a 12-week delay. Stretch the wait longer, as homeowners in low-graded or no-rule states routinely do, and you are looking at four-figure losses stacked on top of a $20,000-plus capital outlay.

This is money your installer's "first year savings" estimate almost never accounts for.

If you live in an F-grade state

If you are reading this from Alabama, Arkansas, Georgia, Louisiana, Tennessee, or any of the other 13 F states, here is what "no statewide rule" means in practical terms:

• No statewide timeline. The utility decides when to respond.

• No common application. Every utility may have a different form, queue, and process.

• No standardized fee structure. Application and study fees can vary widely.

• Limited recourse if the queue stalls. There is no state benchmark to point to in a complaint.

That does not mean solar is a bad idea in those states. It does mean the burden of getting concrete timeline and fee commitments in writing falls almost entirely on you and your installer.

Where the rules got better

A few states made meaningful jumps since the last 2023 scorecard, per Solar Power World's coverage:

• Oregon: D to B

• New Jersey: D to B

• Maine: C to B

• Wisconsin: D to C

California, Connecticut, Minnesota, and Vermont also improved without crossing a letter-grade line. If you are getting quotes in any of these states from an installer using 2023-era timelines or "national average" numbers, push back. The rules have shifted, and an installer who has not updated their pitch may not be tracking them closely.

How to look up your state in five minutes

• Go to freeingthegrid.org.

• Open State Grades. The site organizes states by region: Northeast, Southeast, Southwest, Midwest, and West.

• Click into your state's report card. You will see the headline letter grade plus subscores covering cost, efficiency, and transparency.

• Read the notes for the specific criteria your state failed. Those are the practical pain points your installer should be addressing directly in your contract.

Questions to put to any installer before signing

The grade is your starting point. The conversation with the installer is where it earns its keep. Ask:

• Which utility will be handling my interconnection, and what is their current PTO turnaround for systems like mine?

• Will you put a written PTO target in the contract?

• Who pays application and study fees? Per GreenLancer's process guide, residential application fees commonly run $50 to $400, and SCE's fee under NEM 3.0 is $75.

• If PTO slips past 90 days, what is the remedy in our contract? What about 180 days?

• Will you delay final payment until PTO is granted?

• What is your written estimate of monthly production loss if PTO is delayed, and is any portion of that compensable?

An installer who works your utility frequently should answer these without flinching. An installer who deflects, or who quotes "industry average" instead of your utility's actual record, is telling you something useful.

The new fee landscape in 2026

Beyond the interconnection grade itself, two 2026 fee changes deserve attention:

• Connecticut: A new 3.25 cents per kWh non-bypassable charge now applies to all solar produced for residential customers who applied to interconnect with Eversource or United Illuminating on or after January 1, 2026. That charge sits on top of your normal bill structure and erodes the value of every kWh your system makes.

• California: The $75 SCE NEM 3.0 application fee is small on its own, but combined with NEM 3.0's lower export rates and documented PTO delays, the breakeven math is tighter than it was two years ago.

The tax-credit picture, corrected for 2026

If an installer is telling you to hurry to "lock in the 30% federal tax credit," ask them which credit they mean. Per Electrek and the IRS, the Section 25D residential clean energy credit for directly-owned systems expired for systems placed in service after December 31, 2025, under the One Big Beautiful Bill Act signed July 4, 2025.

That means: if you buy your system outright in 2026, the 30% federal credit you may have heard about is no longer available to you. If you go with a third-party-owned arrangement (a lease or a power purchase agreement), the system can still qualify under the 48E commercial investment tax credit if construction begins before mid-2026 or the system is placed in service by 2028.

This changes how interconnection delays land on you. For a leased system, slow PTO mostly hurts the installer's cash flow and your contracted savings. For a directly-owned system in 2026, slow PTO is straight-up lost generation with no federal credit cushion underneath.

If you have already signed and the queue stalled

If your system is installed and you are weeks or months past the promised PTO date, do this:

• Document every email, phone call, utility status change, and dated portal screenshot.

• Calculate your monthly bill offset that is being lost. Use the last 12 months of your utility bills and your installer's production estimate.

• If you are in a graded state, file a complaint with your state public utility commission. The grade gives you a concrete benchmark to point to.

• If a broader pattern emerges, state attorneys general and audit committees can act. The 13 to 0 California audit vote happened because homeowners and installers documented the same kind of paper trail.

The bigger picture behind your driveway

Residential PTO delays are not happening in a vacuum. Utility queue managers are also working through a national interconnection backlog of roughly 2,600 GW of pending generation, much of it utility-scale renewables and storage. That backlog soaks up engineering staff and study time, which is part of why small residential applications get treated as a low priority in states without firm rules. IREC's Connecting to the Grid program exists in large part to push state regulators toward separating small residential interconnection from this larger queue.

Action checklist before you sign anything

• Look up your state's 2026 IREC grade at freeingthegrid.org.

• Ask your installer for the specific utility's current PTO record, not a national average.

• Get the PTO target and a slip remedy in writing.

• Hold a meaningful portion of the final payment until PTO is granted.

• Confirm whether you actually qualify for any federal tax credit under your ownership structure before basing your math on it.

• Save every piece of correspondence in case a PUC complaint becomes worthwhile.

Solar still works. It just works on a longer schedule than most installer slide decks suggest, and the timeline is mostly out of their hands once they leave the roof. Knowing your state's IREC grade is the cheapest insurance policy you can buy before you sign.

Related reading

• Solar Tax Credit Confusion in 2026: Why Homeowners Think the 30% Credit Expired and What Actually Changed for $20,000 Rooftop Quotes

• Solar Fences Just Arrived in US Cities in 2026: How $6,000 to $15,000 Vertical Panels Solve the No-Roof Problem

• Home Backup Batteries Just Had Their Biggest Quarter Ever in 2026: What 9.7 GWh of New Storage Means for Your $8,000 to $18,000 Backup System

Sources

• IREC's Interconnection Grades Show Improvement in Several States (IREC, May 19, 2026)

• Freeing the Grid official scorecard site

• Freeing the Grid interconnection grade methodology

• IREC study grades each state's interconnection practices (Solar Power World)

• Vote Solar Freeing the Grid partner page

• California Utilities Delay Solar Hookups (US Power Solar)

• SCE PTO Delays: Solar + Storage Interconnection Guide (GreenLancer)

• 2026 Southern California Edison Net Metering (EnergySage)

• Solar Interconnection Agreement: Step-by-Step Process (GreenLancer)

• Connecticut Residential Solar Program Changes in 2026 (Earthlight)

• If you still want that 30% solar tax credit, the new panic date is July 4 (Electrek)

• Residential Clean Energy Credit (IRS)

• Interconnection queues cut across new renewable and fossil source timelines (pv magazine USA)

• Connecting to the Grid (IREC program page)

Note: This article contains AI-assisted content and has been reviewed by our editorial team.

ABOUT THIS SERVICE: CallTheLocal.com is a directory and lead generation service, not a contractor or service provider. Submitting this form does not obligate you to hire anyone or purchase any service. Your information will be shared with licensed, insured home service professionals in your area who may provide quotes for your project. CallTheLocal.com does not guarantee the quality, timeliness, or outcome of any work performed by service providers you connect with through this service. Always verify licensing, insurance, and references before hiring. Get everything in writing before work begins.