Tampa consistently ranks among Florida’s top solar markets for a simple reason: high consumption meets rising utility rates and excellent sun. The Tampa area averages approximately 5.7 peak sun hours daily and over 240 sunny days per year — strong production numbers that hold up year-round rather than spiking seasonally.
TECO’s residential electricity rate has been climbing steadily. Rates rose roughly 28% between 2021 and 2023, and additional increases followed in 2025 and January 2026. The 2025 bills included a storm surcharge that ended in September — paying down costs from the 2024 hurricane season — followed by a base-rate adjustment of approximately $8.88 per 1,000 kWh taking effect in January 2026. EnergySage puts the current Tampa electricity rate at approximately 18 cents per kilowatt-hour as of early 2026, reflecting these increases. That rate environment is a meaningful tailwind for solar economics.
Installation costs in the Tampa market average approximately $2.08–2.20 per watt as of late 2025/early 2026. A typical full-offset system in Tampa runs 14–15 kW given Florida’s high cooling load, totaling roughly $29,000–$33,000 before incentives. The federal residential solar tax credit (25D) expired December 31, 2025. Florida’s 100% property tax exemption and sales tax exemption on solar equipment remain in place. EnergySage data puts Tampa’s average payback period at approximately 8.7 years, with 25-year net savings typically in the range of $65,000–$88,000. Solar’s value case in Tampa is straightforward: a rising-rate environment over a 25-year production horizon is exactly the scenario where locking in fixed energy costs makes the most financial sense.
Tampa Electric offers full retail net metering to all residential customers who install a certified solar system — a requirement under Florida state law. Here is how the mechanics work:
Monthly netting: Each billing period, TECO’s bi-directional meter tracks both what you consume from the grid and what your panels export to it. If your exports exceed your imports in a given month, you carry a kWh credit forward to the following month. You are only billed for your net usage — the difference between what you consumed and what you produced — plus the fixed basic service charge, which solar credits cannot offset.
Annual true-up: Credits roll over month-to-month throughout the year. At the end of each 12-month period, any remaining unused kWh credits in your account are settled at a lower wholesale rate — typically in the range of 1.5–3 cents per kilowatt-hour — and your credit bank resets to zero. This is meaningfully lower than TECO’s retail rate, which makes system sizing important: you generally want to generate close to what you consume annually, not substantially more.
Sizing recommendation: The practical implication of the annual true-up is to right-size your system to cover approximately 95–100% of your annual consumption. Generating 20–30% more than you use annually means the surplus exports at 1.5–3 cents rather than displacing grid power at 18 cents — a significant value difference over a 25-year system life.
No minimum bill requirement: Unlike FPL ($16/month) and Duke Energy Florida ($30/month), TECO does not impose a minimum monthly bill charge that solar credits cannot offset. Your fixed basic service charge is the only required payment if your solar production covers your full energy consumption.
Interconnection: TECO installs a bi-directional smart meter as part of the interconnection process. Most residential systems are processed as standard net metering applications with no additional fee. TECO does not currently offer cash rebates for rooftop solar, though the company’s Sun Select community solar program allows non-solar customers to support solar energy through a subscription charge.
With the federal residential solar tax credit expired as of December 31, 2025, the incentive picture for Tampa homeowners in 2026 is limited to Florida’s two state-level tax exemptions and net metering — but that’s the same story across Florida, and solar still pencils well without the federal credit given TECO’s rate trajectory.
Florida property tax exemption: Florida law prohibits property assessors from including the added value of a solar installation when calculating a home’s assessed value for property tax purposes. For a well-priced Tampa home, solar adds real resale value (Zillow research puts the national average at approximately 4.1% of home value) without a corresponding increase in property taxes.
Florida sales tax exemption: The purchase and installation of a solar energy system is exempt from Florida’s 6% sales tax. On a $30,000 system, that exemption represents approximately $1,800 in savings.
No TECO rebates: TECO does not currently offer a cash rebate or incentive program for rooftop solar installations. The Sun Select shared solar program exists as an alternative for customers who cannot install rooftop panels, but it is not a rebate — participants pay a solar charge in place of the standard fuel charge.
Rate trajectory and its implications: TECO’s rates have increased substantially over recent years and additional increases are already approved through 2026. While the rate path in any single year is unpredictable, the structural trend — driven by grid hardening, storm restoration costs, and fuel infrastructure — has been consistently upward. A solar system purchased today at current rates locks in that economics for the life of the panels; every subsequent TECO rate increase effectively improves the system’s internal rate of return.
Battery storage: TECO interconnects battery storage separately from net metering. Batteries are not net metered — they store energy for home use but do not receive export credits. The primary value of battery storage in the Tampa market is hurricane resilience: grid-tied solar shuts off automatically during TECO outages (anti-islanding), and battery backup provides the only means of continuing to run critical loads when the grid is down. Given that Tampa Bay sits in a historically active hurricane corridor and experienced back-to-back major storm impacts in 2024, resilience is a genuine consideration alongside the financial case.
