Idaho Power Net Metering: How to Apply and Get Credited (Step-by-Step)

By Claire Whitaker

Updated November 2026

Idaho Power net metering lets a home solar owner send excess electricity from their rooftop or ground-mount system to the utility grid and receive bill credits for it. This guide walks you through eligibility, the application process, how credits are calculated on your monthly bill, and the mistakes that most often slow down approval. By the end, you should know exactly what to submit and what to expect after your system is switched on.

What Idaho Power Net Metering Covers

Under net metering, your meter runs both ways. When your panels produce more than your home uses, the surplus flows to the grid and your meter records it. When your panels produce less than you need, such as at night or during heavy cloud cover, you draw power from the grid as usual. At the end of each billing cycle, the utility nets these two flows against each other. The rules for customers in Idaho are set through the Idaho Public Utilities Commission and Idaho Power’s tariff schedules, which can change, so always confirm current terms with the utility before you commit to a system size.

Shopping for one? See our guide: Dominion Power Net Metering (2026): How It Works and Who Benefits.

Idaho Power’s net metering program applies to residential customers with grid-tied systems. Systems are generally sized to offset your own annual consumption rather than to generate large surpluses, and there are size limits tied to your service type. Your installer and the utility’s interconnection team can confirm the maximum allowable system size for your address.

Step 1: Confirm Your Eligibility

Before you buy equipment, check the basics. Eligibility usually depends on the following:

• You are an active Idaho Power residential customer with a service account in your name.
• Your home is served by a standard single-phase meter capable of bidirectional recording, or you are willing to have one installed.
• Your system is grid-tied and uses inverters that meet current interconnection standards (typically UL 1741 and IEEE 1547 listings).
• Your planned system size does not exceed the program limit for your service.
• Your roof or ground mount meets local building and zoning requirements.

If you rent, you will need the property owner’s written permission before applying.

Step 2: Size Your System Realistically

Pull at least twelve months of kilowatt-hour usage from your Idaho Power bill history. Add up the annual total, then compare it to the output your panels can realistically produce in your location. Idaho’s high desert climate gives many homes strong summer production, but winter output drops sharply, and snow can cover panels for days at a time.

Ask your installer for a production estimate that uses local irradiance data for your ZIP code. A system that produces far more than you consume will create large annual surpluses that may be handled differently under the tariff, so balance size against actual need.

Step 3: Gather the Application Documents

Idaho Power requires an interconnection application before any system can be energized. Most installers prepare the core paperwork, but you should confirm you have each item ready:

1. Your Idaho Power account number and service address.
2. A single-line electrical diagram showing panels, inverters, disconnects and the point of interconnection.
3. Equipment specification sheets for panels and inverters, including listing certificates.
4. Proof of property ownership or written landlord consent.
5. Any permits required by your city or county, such as a building or electrical permit.
6. A signed interconnection agreement, once the utility issues it.

Check the utility’s current interconnection forms on its website, since form numbers and submission portals are updated periodically. You can find the step-by-step process in more detail in our article Idaho Power Net Metering Application: Steps, Forms and Timeline.

Step 4: Submit the Interconnection Application

Submit the application through the channel Idaho Power specifies, which is usually an online portal or a designated email address for distributed generation requests. Keep a copy of every document and the confirmation receipt. Applications are reviewed in stages, and the utility may request clarifications on wiring diagrams or equipment listings. Respond quickly to these requests, because an open question can pause your queue position.

Once the review is complete, you will receive an approval to install. Do not energize the system or turn on the inverter before you receive written permission to operate.

Step 5: Install, Inspect and Commission

After installation, your local inspector must sign off on the electrical work. Schedule the inspection promptly, since the utility generally wants to see the final permit before it installs or verifies the bidirectional meter. A licensed electrician should perform or supervise the connection to your main panel. If you are not licensed, do not attempt high-voltage work yourself; the consequences of a wiring error include fire and electrocution risk. Consult a licensed professional for any work beyond the roof racking and panel mounting.

Once the inspection passes and the meter is in place, the utility issues permission to operate (PTO). Only then should the system be switched on.

Step 6: Understand How Credits Appear on Your Bill

Your bill will show energy imported from the grid and energy exported to it. Net metering offsets exports against imports within a billing period. In many cases, a surplus in one month carries forward to offset future usage, while the annual true-up and any remaining balance follow the rules in your current tariff. Read your bill each cycle and compare the exported kWh to what your inverter monitoring app reports. Small differences are normal because of timing and meter reading dates, but large gaps deserve a call to the utility.

Common Mistakes

• Energizing too early. Turning on the inverter before PTO can violate your agreement and delay approval.
• Undersizing or oversizing without a plan. Model your annual usage first, then choose the system size.
• Missing the inspection window. Many delays come from unscheduled inspections rather than from the utility itself.
• Ignoring equipment listings. Inverters without the required certifications can be rejected at interconnection.
• Assuming rules never change. Tariffs and program caps are revised, so verify terms before signing a contract.
• Skipping monitoring. Without monitoring, you may not notice a failed inverter or shading problem until your bill rises.

Tips for a Faster Approval

• Ask your installer who submits the application and get a named contact.
• Keep a single folder, digital or paper, with every version of every document.
• Photograph the installed equipment, labels and meter before the inspection visit.
• Track the application status weekly and note the date of each reply.
• If you are comparing options in other states, our overview Net Metering by State: Rules, Credits and What to Check (2026) explains how program terms differ.

Recommended gear

These items are commonly used to monitor and document a grid-tied system during and after approval.

• Sense Home Energy Monitor helps track real-time production and consumption, which makes it easier to compare your inverter data with the utility bill. View on Amazon
• Kill A Watt P3 Meter lets you measure the draw of individual appliances, useful for right-sizing your system before you apply. View on Amazon
• Fluke 287 True-RMS Multimeter is a professional-grade meter for checking voltage on circuits, but it should be used only by someone trained in electrical testing. View on Amazon

FAQ

How long does idaho power net metering approval take?

Timelines vary with the utility’s queue and the completeness of your paperwork. Applications with complete documents and listed equipment generally move faster. Ask Idaho Power or your installer for the current estimate.

Do I need a new meter?

Often yes. Your system needs a meter that records power flowing in both directions. The utility will tell you whether your existing meter qualifies or needs replacement.

Can I add panels later?

Expansion usually requires a new or amended interconnection application, because the approved system size is part of your agreement.

What happens during a power outage?

Grid-tied systems shut down during outages for worker safety. Battery backup requires a separate design and approval.

Will my bill go to zero?

Not necessarily. Fixed monthly charges and certain fees may still apply, and the outcome depends on your usage pattern and system size.

Can a renter apply?

Yes, with written permission from the property owner and proof that the owner agrees to the installation.

Do I need a licensed electrician?

For any connection to your main electrical panel, yes. Consult a licensed professional and your local permitting office before doing any electrical work.

Conclusion

Idaho Power net metering works when your system is sized correctly, your paperwork is complete and your installation passes inspection before it goes live. Follow the steps in order, keep documentation organized and read your bill each month to confirm credits are applied. Because program rules can change, verify current terms with Idaho Power before you sign a contract.

Related reading

• Net Metering in Texas vs Selling Power to a Retailer: Which Should You Choose?

About Claire Whitaker

Claire Whitaker is part of our editorial team and reviews and edits our home solar guides, checking product details against manufacturer specifications and owner feedback.