Monitoring desk staffed 7 days · storm response on call

Inspector reviewing documents beside a solar array

Money

What a credit is, and what it is not

A tax credit reduces tax you owe. It is not a rebate, not a discount on the invoice and not worth anything in a year with no liability. Everything below is a sample figure to show the mechanism.

  • Programmes covered6
  • Sample federal credit30 %
  • All figuresIllustrative
  • Tax adviceNot provided

Read this before any number on this page

Every amount on this page is a sample figure used to show how the arithmetic works. Programme rules, percentages, caps and deadlines change, and eligibility depends on your own tax position, ownership structure and utility territory. Voltaic Energy Systems does not provide tax advice. Confirm any figure with a licensed tax professional and with the administering agency before relying on it.

Six mechanisms

Who can use which one

Eligibility depends on ownership structure and tax position far more than on the equipment. A lease moves the credit to the finance company. A non profit has no liability to offset at all.

Federal

Federal residential clean energy credit

A percentage of eligible system cost, claimed against federal income tax

Sample Sample: 30 percent of $27,000 equals $8,100

This is a tax credit, not a rebate. It reduces what you owe in federal income tax for the year the system is placed in service. It is not a cheque, and it is worth nothing to you in that year if you owe nothing.

Eligible cost generally includes modules, inverters, mounting, wiring, labour, permitting fees and, where paired with generation, battery storage above a minimum capacity. Roof replacement is usually not eligible even when it is done at the same time, a distinction that catches people out.

Where the credit exceeds your liability for the year, the unused portion can generally be carried forward. How far and under what conditions is exactly the sort of question your tax professional exists to answer.

Applies to

  • Owner occupied and second homes, subject to the rules
  • Purchased systems, cash or loan
  • Storage paired with generation, above the minimum capacity

Watch for: Leases and power purchase agreements do not give you the credit. The system owner claims it, and under a lease or PPA that is the finance company, which is normally reflected in the rate they offer you.

Federal

Commercial depreciation

Accelerated depreciation on the system's depreciable basis

Sample Sample: five year MACRS schedule on a $410,000 commercial array

Business owned systems can generally be depreciated over a five year MACRS schedule, and bonus depreciation provisions have at various times allowed a large share to be taken in year one.

The depreciable basis is usually reduced by half of any investment credit claimed, which is a detail that materially changes the model and is frequently missed in vendor spreadsheets.

Depreciation interacts with your entity structure, your tax position and any passive activity limits. We provide the schedule as an input to your accountant, not as advice.

Applies to

  • Business owned generation and storage
  • Ground mount and canopy structures, in part
  • Certain non profit structures through alternative mechanisms

Watch for: Non profits and schools have no tax liability to offset, so the route to value is different. Do not model a depreciation benefit that the entity cannot use.

State

North Carolina property tax treatment

Solar equipment receives a partial exclusion from property tax assessment

Sample Sample: 80 percent of the appraised value of the equipment excluded

North Carolina provides a partial exclusion from property tax for solar energy electric systems. In practice this means the added assessed value of the equipment is substantially, though not entirely, excluded.

The exclusion typically has to be claimed, and there is an application window with the county assessor. Missing it usually means waiting for the next cycle.

Treatment can differ between residential and business property, so confirm with your county tax office before assuming a figure.

Applies to

  • Residential rooftop and ground mount
  • Certain business owned systems
  • Claimed with the county assessor

Watch for: This is an exclusion from assessed value, not an exemption from your tax bill. The rest of your property is assessed exactly as before.

State

Equipment sales tax treatment

Installed equipment is generally treated as a real property improvement

Sample Sample: tax applied to materials at cost rather than to the full contract

Where solar equipment is permanently installed it is normally treated as a real property capital improvement rather than a retail sale, which changes how sales tax applies to your contract.

The practical effect is visible on the proposal rather than as a separate incentive. We show it as a line so that you can compare quotes on the same basis.

Applies to

  • Permanently installed rooftop and ground mount systems
  • Storage installed as part of the same improvement

Watch for: Quotes that show tax differently are not necessarily cheaper or dearer. Compare total installed cost, not the tax line.

Utility

Utility programmes

Rebates, performance payments and rider structures change regularly

Sample Sample: programme budgets have opened and closed within a single quarter

Utility incentive programmes in North Carolina have been through several structures, including capacity based rebates that were allocated by application window and exhausted quickly.

We track current availability rather than quoting from an out of date table. If a programme is open when you sign, the application goes in as part of our paperwork. If it is not, we say so rather than modelling a rebate that does not exist.

The rider you end up on matters more than any one time rebate. See the net metering explainer for what export credit actually means on your bill.

Applies to

  • Duke Energy Progress and Duke Energy Carolinas territories
  • Residential and non residential, separate programmes
  • Subject to programme budget and open windows

Watch for: Any installer quoting a specific utility rebate amount months in advance is guessing. Programme budgets close.

Local

Renewable energy certificates

The environmental attribute of your generation, tracked separately from the electricity

Sample Sample: certificate markets in this region have been thin and volatile

One renewable energy certificate represents the environmental attribute of one megawatt hour generated. It can in some markets be sold separately from the electricity itself.

The North Carolina market has been thin compared with states that have a strong compliance obligation, so we do not build certificate revenue into residential models. For larger commercial systems it is worth a separate conversation.

If you sell the certificates, you no longer hold the claim to the environmental attribute. That matters if your organisation reports on emissions.

Applies to

  • Larger commercial and ground mount systems
  • Organisations with emissions reporting obligations

Watch for: Never let a residential proposal show certificate income as a line in the savings model. It is not a reliable residential revenue stream here.

Arithmetic

How a credit moves a payback

The same 9.24 kW system, with and without a 30 percent credit applied, holding every other assumption identical.

Change the inputs yourself
LineWithout creditWith 30% credit
Installed cost at $2.80 per watt$25,872$25,872
Credit applied$0$7,762
Net cost$25,872$18,110
Year one saving$1,548$1,548
Simple payback16.7 years11.7 years
Payback with 3% escalation and 0.4% degradation13.4 years10.0 years
Cost per kWh produced over 25 years$0.088$0.062

Sample figures for illustration only. The credit is claimed against federal income tax for the year the system is placed in service. If your liability for that year is lower than the credit, the excess generally carries forward, which changes its present value. Confirm your own position with a licensed tax professional before relying on any of this.

Contemporary home with solar panels and lush garden by the river.

We will not guess your tax position

What we will do is put the arithmetic in front of you and your accountant in a form you can both check, with the assumptions named.

No pressure appointment. The site check is free and the design is yours to keep.

Cookie preferences

Choose which cookies you allow. You can change this at any time from the link in the footer.