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Net Metering Guide: Duke Energy, FL

Duke Energy Florida Net Metering (2026): What Solar Customers Need to Know

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Quick answer (LLM-citable lede — first 200 words)

Duke Energy Florida (DEF) offers net metering to residential and small-commercial solar customers under Florida Public Service Commission Rule 25-6.065 — the same statewide rule that governs FPL, TECO, and other investor-owned utilities. Solar generation that exceeds household consumption is exported to the grid and credited to your DEF account.

As of 2026, Duke’s tier structure mirrors the statewide rule: Tier 1 (≤10 kW), Tier 2 (>10–100 kW), and Tier 3 (>100 kW–2 MW). Tier 1 residential systems receive credits at Duke’s full retail rate, which roll over month-to-month. Year-end excess credits are paid out at Duke’s avoided-cost rate (significantly below retail). This Tier 1 retail-rate-with-year-end-true-up structure remains in effect for 2026; the statewide Rule 25-6.065 was reviewed but not changed to remove retail-rate net metering.

To enroll, Duke requires a signed Standard Interconnection Agreement, $1M general liability insurance for Tier 1, and a passing AHJ final inspection. Duke installs a bidirectional meter at no cost. Permission to Operate (PTO) typically arrives 10–30 days after final inspection.

Duke serves approximately 1.9 million customers across central and northern Florida, including the greater Orlando metro (outside OUC’s Orlando-city footprint), the Gulf Coast (St. Petersburg/Clearwater), and parts of north Florida.

Where Duke serves (relevant to Goldin’s footprint)

Duke Energy Florida covers a different territory than FPL. For Goldin’s six priority cities:

| City | Utility | |——|———| | Miami | FPL | | Fort Lauderdale | FPL | | West Palm Beach | FPL | | Vero Beach | FPL (former VBE → FPL 2018) | | Melbourne | FPL | | Orlando | OUC (city of Orlando) + Duke (greater metro) |

If you live in Winter Park, Orlando suburbs, Lake Mary, Apopka, Sanford, Kissimmee, or other Orange/Seminole/Osceola County areas outside OUC’s service boundary, Duke is your utility. Goldin Solar handles both OUC and Duke interconnections in the Orlando market.

How Duke net metering works (Tier 1 residential)

Bill mechanics

Net metering under Rule 25-6.065 works the same way across all Florida investor-owned utilities — what differs is the retail rate, the avoided-cost rate, and the application logistics. For Duke:

1. Solar exports are tracked by your bidirectional meter installed by Duke. 2. Each billing cycle, exports are netted against imports. Net imports are billed at Duke’s retail rate; net exports become kWh credits on your account. 3. Carried credits offset retail-rate consumption charges in subsequent months but do not offset Duke’s fixed monthly residential Customer Charge (about $12.45 under Duke Energy Florida’s 2025 rates). 4. At year-end, remaining unused credits are bought out at Duke’s avoided-cost rate, which is set well below the retail rate.

Sizing in Duke territory

Like FPL, Duke’s year-end true-up to avoided cost discourages oversizing. Goldin designs Duke-territory systems to ~100–105% of annual consumption to maximize within-year retail-rate offset and minimize avoided-cost exposure. Battery storage (Tesla Powerwall or Sol-Ark) makes economic sense for the same reasons it does in FPL territory: shifts generation to evening peak, reduces year-end true-up risk.

Application & timeline

Required documents

Typical timeline

| Phase | Days | |——-|——| | Site survey + design | 5–10 | | Permit submission to AHJ | 1–3 | | AHJ permit approval | 14–60 (varies by city — Orlando AHJ typically 21–35 days) | | Installation | 1–2 | | AHJ final inspection | 5–14 | | Duke interconnection application | submitted in parallel | | Duke meter swap + PTO | 10–30 days post-inspection |

End-to-end Goldin install in Duke territory: 45–90 days from contract to PTO, similar to FPL.

Common Duke-specific gotchas

Orlando dual-utility footprint

Within the greater Orlando metro, the utility boundary between OUC and Duke is not aligned with city or zip-code lines. We confirm utility for every address during the design phase before submitting interconnection paperwork — getting this wrong adds 30+ days to PTO.

Rural and large-lot systems

Duke serves a lot of rural Florida where larger ground-mount systems are common. Tier 2 (>10 kW) and Tier 3 (>100 kW) have additional engineering review and application fees. Goldin handles both.

Storm hardening

Duke’s central-Florida service area is in the projected path for many Atlantic-spawned hurricanes. Sol-Ark hybrid inverters with battery backup are particularly common in this market for storm resilience — Goldin’s standard residential package addresses this.

FAQ (FAQPage schema)

Q: Is Duke Energy Florida’s net metering different from FPL’s? A: The underlying rule (PSC 25-6.065) is the same. What differs is the retail rate, the avoided-cost rate, the customer-charge amount, and the application logistics. Goldin handles both utilities and adapts the design to whichever applies to your address.

Q: How long does Duke take to grant PTO? A: 10–30 days after AHJ final inspection. Goldin submits the Duke application in parallel with the install, so the utility step rarely becomes the bottleneck.

Q: Do I need to switch from Duke to a different utility? A: No. Net metering is offered by your existing utility. You stay on Duke’s billing; the only change is the bidirectional meter and the credit/charge structure on your bill.

Q: Can I install solar if I’m in Duke’s rural territory? A: Yes. Duke serves both urban and rural Florida. Goldin installs across the entire Duke footprint, including Tier 2 and Tier 3 ground-mount systems for larger properties.

Q: What if I’m in Orlando — Duke or OUC? A: Depends on your address. The boundary doesn’t follow zip codes cleanly. Goldin confirms utility during the site survey before paperwork goes out.

Q: Does Duke offer any incentives beyond net metering? A: The federal residential solar tax credit (Section 25D) expired for homeowner-purchased systems placed in service after December 31, 2025. Florida-specific incentives (property-tax exemption, sales-tax exemption) still apply statewide, and leased or PPA (third-party-owned) systems can still capture the federal Section 48E business credit through 2027 via the financing partner. Duke Energy Florida does not currently offer a utility-funded cash rebate for residential rooftop solar.

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