How Much Electricity Does a Wind Turbine Produce? (2026)

A typical new US land-based wind turbine (3.8 MW) produces about 11,300 megawatt-hours (MWh) of electricity a year, enough for roughly 1,050 average American homes. That works out to about 943 MWh a month, 31 MWh a day and 1.3 MWh an hour on average. The exact number depends on the turbine’s size and how windy its site is.

This guide shows the formula, works through the arithmetic per year, month, day and hour, compares turbine sizes from a 10 kW home unit to a 15 MW offshore machine, and looks at the carbon footprint of wind power.

How much electricity does a wind turbine produce?

Three numbers decide the answer: the turbine’s rated capacity, the hours in the period, and the capacity factor (the share of its maximum output it actually delivers).

Output (MWh) = capacity (MW) × hours × capacity factor

The average turbine installed on land in the US in 2025 had a capacity of 3.8 MW, a rotor diameter of 141 meters (about 463 feet) and a hub height of 102 meters (about 335 feet), according to Lawrence Berkeley National Laboratory’s Land-Based Wind Energy Technology Update, 2026 edition. The same report puts the fleet-wide capacity factor at 34% in 2025.

Worked example for one average new turbine:

• Per year: 3.8 MW × 8,760 hours × 0.34 = 11,318 MWh (11.3 million kWh)
• Per month: 11,318 ÷ 12 = 943 MWh
• Per day: 11,318 ÷ 365 = 31.0 MWh (about 31,000 kWh)
• Per hour: 3.8 MW × 0.34 = 1.29 MWh (about 1,290 kWh)

These are averages. In a strong wind the turbine makes its full 3,800 kWh in an hour, and on a calm day it makes nothing. If megawatts and megawatt-hours are easy to mix up, our guide to the difference between kW and kWh explains them.

How many homes can one wind turbine power?

The average US residential utility customer bought 10,791 kWh of electricity in 2022, or about 899 kWh a month, according to the EIA. Divide turbine output by that figure:

11,318,000 kWh ÷ 10,791 kWh = about 1,050 homes per average new turbine.

Newer projects do better than the fleet average. Wind projects built in 2024 ran at a 37.1% capacity factor in 2025 (LBNL). At that rate the same turbine makes 3.8 × 8,760 × 0.371 = 12,350 MWh, enough for about 1,140 homes.

Another way to see it: one hour at full rated power is 3,800 kWh, which is more than four months of electricity for an average home (3,800 ÷ 899 = 4.2). “Homes powered” is an annual average, though. A turbine does not follow a household’s demand hour by hour, so the grid still needs other sources and storage. See how many kWh a house uses for the breakdown by state and home type.

Wind turbine output by size

The table applies the same formula to six turbine sizes. Capacity factors are stated for each row, because the assumption changes the result as much as the size does. Homes are annual kWh divided by 10,791.

The 34% figure is an average across turbines built from 1998 to 2024. Many 1.5 MW machines are older designs with shorter towers and smaller rotors, so their real output is often below the table value.

How clean is the electricity where you live? See the share of wind, solar, gas and coal and the carbon intensity for more than 200 countries. Explore the electricity mix data

Wind turbine capacity factor: why turbines do not run at full power

A capacity factor of 34% does not mean a turbine works a third of the time. It turns most of the time, but usually below its rated power, because output follows wind speed.

• Cut-in speed: the blades start turning and generating at about 6 to 9 mph (US Department of Energy).
• Rated speed: the wind speed at which the turbine reaches its maximum, or rated, power. Stronger wind adds nothing beyond this point.
• Cut-out speed: the turbine shuts itself down to avoid damage. DOE gives 55 mph as an example and notes that it varies by model.

Between cut-in and rated speed, the power in the wind rises with the cube of wind speed, so a small drop in wind cuts output sharply. That is why site quality matters so much.

There is also a hard physical ceiling. The Betz limit says no turbine can capture more than 16/27, or 59.3%, of the kinetic energy in the wind passing through its rotor. Modern utility-scale turbines reach about 75% to 80% of that limit at their best operating point.

Rotor size is the lever engineers pull. A 141-meter rotor sweeps π × 70.5² = about 15,600 square meters, which lets it harvest useful energy from lighter winds and keeps the capacity factor up.

Offshore vs onshore wind turbine output

Offshore turbines are larger and sit in steadier wind. Vineyard Wind 1 off Massachusetts uses 62 GE Haliade-X turbines rated at 13 MW each, about 3.4 times the capacity of the average new land-based turbine (13 ÷ 3.8).

Capacity factors are higher too. Vineyard Wind’s construction plan listed a capacity factor above 45%, and South Fork Wind off Long Island reached 53% in the first half of 2025, as reported by The New Bedford Light. Typical offshore values sit in the 40% to 50% range, against 34% for the land-based fleet.

Put together, one 13 MW offshore turbine at 45% produces 51,246 MWh a year, about 4.5 times the 11,318 MWh from an average new land-based turbine.

How much does a home wind turbine produce?

Much less than the rated size suggests. Pacific Northwest National Laboratory’s Distributed Wind Market Report (2024 edition) tracked 100 small turbines between 2 kW and 78 kW and found an average capacity factor of 13% in 2023.

For a 10 kW turbine: 10 kW × 8,760 hours × 0.13 = 11,388 kWh a year, or about 950 kWh a month. That is close to one average US home’s use, but only on a site that performs at the average. Short towers, trees and buildings slow the wind and can push output far lower.

Cost is the other barrier. The same report puts small wind projects installed in 2023 at $7,370 per kW, and the ten-year average at $11,410 per kW. For most suburban homes, rooftop solar is the easier route, and a solar savings calculator will show the payback for your address.

How much electricity do wind turbines produce in the US?

Wind is the largest renewable source of electricity in the US. EIA data for 2025:

The share checks out: 464 ÷ 4,429 = 10.5%. Divided by average household use, 464 billion kWh equals the annual electricity of about 43 million homes (464,000,000,000 ÷ 10,791).

Wind turbine carbon footprint: do turbines offset their emissions?

Yes, and quickly. A turbine burns no fuel, so nearly all of its emissions come from steel, concrete, fiberglass, transport, construction and decommissioning. Life-cycle studies spread those emissions across every kWh the turbine generates in its lifetime.

These medians come from NREL’s Life Cycle Assessment Harmonization update (2021). NREL’s earlier wind-only review, covering 126 estimates from 49 studies, found a harmonized median of 11 g CO₂e per kWh. Gas is cleaner than coal but still a fossil fuel, as we explain in is natural gas renewable?

The carbon payback follows from those numbers. Each wind kWh that replaces a gas kWh avoids 486 g while “costing” 13 g, so the turbine repays its whole life-cycle footprint in 13 ÷ 486 = 2.7% of its life. Over a 25-year life that is about 8 months. Against coal it is 13 ÷ 1,001 = 1.3%, or about 4 months.

Peer-reviewed studies land in the same range. An Oregon State University assessment of 2 MW turbines (International Journal of Sustainable Manufacturing, 2014) found an energy payback of 5 to 8 months. A 2024 study of New Zealand’s 41-turbine Harapaki wind farm (Journal of the Royal Society of New Zealand) found 10.8 g CO₂e per kWh, an energy payback of 0.4 to 0.5 years and a carbon payback of 1.5 to 1.7 years against efficient gas plants.

To turn your own electricity use into emissions, use the kWh to CO₂ calculator. For background on the units, see what CO₂e means and how emission factors work.

Frequently asked questions

How much electricity does a wind turbine produce per day?

An average new US land-based turbine (3.8 MW at a 34% capacity factor) produces about 31 MWh, or 31,000 kWh, a day. That is roughly the daily use of 1,050 homes.

How much electricity does a wind turbine produce per hour?

About 1,290 kWh on average for a 3.8 MW turbine. At full rated power it makes 3,800 kWh in an hour, and in calm air it makes none.

How much electricity does a wind turbine make in a year?

About 11,300 MWh for the average 3.8 MW turbine installed in 2025, using the 34% fleet capacity factor. A 13 MW offshore turbine at 45% makes about 51,000 MWh.

What is a good capacity factor for a wind turbine?

The US land-based fleet averaged 34% in 2025, and projects built in 2024 reached 37.1% (LBNL). Offshore projects typically run at 40% to 50%, and small home turbines averaged 13% in 2023.

How long does a wind turbine take to pay back its carbon footprint?

Usually well under two years. Published studies report energy payback of about 5 to 8 months and carbon payback of up to 1.7 years, against a service life of 20 to 25 years.

How many wind turbines does it take to power 1 million homes?

About 950 average new turbines. One 3.8 MW turbine covers about 1,049 homes, and 1,000,000 ÷ 1,049 = 953.

Sources

• Lawrence Berkeley National Laboratory: Land-Based Wind Energy Technology Update, 2026 edition
• EIA: Electricity generation from wind
• EIA: How much electricity does an American home use?
• NREL: Life Cycle Greenhouse Gas Emissions from Electricity Generation: Update (2021)
• PNNL: Distributed Wind Market Report, 2024 edition
• US Department of Energy: How do wind turbines survive severe weather and storms?
• Pincelli, Hinkley and Brent (2024), Harapaki wind farm life-cycle study, via ScienceDaily