How much does a commericial wind turbine cost?
To begin, start by playing with the idea of how much 164 tons of steel, fiberglass, resin, plastic, iron, copper and aluminum would cost.
The answer is millions of dollar per wind turbine.
In this article we will jump straight into the world of wind turbines, we will learn how much they cost, do they pay for themselves over time and is the overall upfront investment actually worth it in the first place.
Additionally, we will also answer the most frequently asked questions revolving around wind turbines.
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What’s the cost of a wind turbine?
Although onshore wind electricity as a whole has declined in price by 70% within the last 10 years, the manufacturing and installation of wind turbines still cost a lot.
Breakdown of wind turbine cost
- Average sized commercial wind turbines cost $2.6 – $4 million per wind turbine.
You can expect typical costs to be about $1.3 million per megawatt (MW) of electricity (this is producing capacity).
The majority of commercial wind turbines you spot while driving along the highway have a total capacity of 2-3 MW. Offshore wind turbines however, can be as large as 12 MW.
As with most technological innovations, the bigger it is the more it costs. The same goes for wind turbines, costs inflate as wind turbine sizes increase.
However, with that being said there are certain occassions where using fewer, larger turbines can benefit the overall wind turbine project.
Wind turbine maintenance costs
As with all technology that has moving parts, once built, wind turbines require ongoing maintenance.
Maintenance costs vary greatly depending on the turbines age, location and O&M strategy.
IHS Markit claims that on average O&M costs average between $42,000 and $48,000/MW during the first 10 years of a wind turbine’s operations. This overall number gets higher as the turbine ages, which makes a lot of sense considering the eventual wear and tear.
At first it the costs do seem rather outrages, however these grand machines are long-term investments and the hope is that they pay for themselves in the long run.
This number climbs as the the turbine ages, which is not surprising considering the wear and tear and harsh environments these machines operate in.
How much money does a wind turbine produce?
It important to note that a wind turbine has a maximum rated capacity (such as 2 megawatts). However, it will only produce electricity at a “capacity factor” due to fluctuating wind conditions.
In the table below, you will find numbers based on the typical sale price (2019 data) of electrical power created by wind turbines.
All the power generated by the wind turbines is sold back to the electrical grid of utility companies, this is how wind turbines eventually pay for themselves.
As green technology improves, so will the installation costs and thus the end cost of electricity itself.
|Turbine Size||Yearly Revenue||35% Capacity||50% Capacity||65% Capacity||100% Capacity||Until Paid Off|
|1 Megawatt||$0.02 per kWh = |
$20/hour x 24 hours x
|2.5 Megawatts||$0.02 per kWh =|
$50/hour x 24 hours x
|4 Megawatts||$0.02 per kWh =|
$80/hour x 24 hours x
Because wind conditions constantly fluctuate, wind turbines often operate between 35% – 65% capacity. The goal is to get them operating at the highest capacity possible.
If you were to invest in wind turbines, how long will your investment take to pay off?
Assuming that your turbines operate on average at 50% capacity. Your investment would pay for itself in the following amount of time:
- 1 Megawatt Turbine: 14 Years
- 2.5 Megawatt Turbine: 11,8 Years
- 4 Megawatt Turbine: 11,4 Years
How tall is a wind turbine?
Since the year 2012, the average wind turbine installed in the United States was about 280 feet (80 meters).
Typically the towers range between 200-260 feet tall, while the blades often measure well over 100 feet long.
The mighty Gamesa G87 models blades take the total height og the turbine up to 399 feet.
How fast does a wind turbine spin?
Depending on fluctuating wind conditions, turbine blades spin at a rate of between 10 and 20 revolutions per minute.
Considering the length of the blades and average wind speeds of 10 to 15 mph, wind turbine blades are traveling on average 120 mph (193 kph).
When wind speeds increase, wind turbine blades can reach an elevated speed of 180 mph (289 kph).
Because the blades are so large, they seem as if they are moving super slow, when in actual fact, the opposite is the case.
Fun fact, in high winds wind turbine blades spin faster than the Tesla Model S.
Do they make small wind turbines for single homes?
Yes, in fact smaller wind turbines are becoming more and more popular each year as prices drop. You can buy a small wind turbine for now less than $1000.
When it comes to actual energy production, amounts vary greatly, all depending on the turbines size, specs, and wind conditions.
For example check out this wind turbine kit from Pikasola which you can pick up for less than $300.
Do birds get hit by wind turbine blades?
Sadly, birds do sometimes get hit by spinning wind turbine blades. On average wind turbine kill between 214,000 and 368,000 birds annually.
However when compared with the estimated 6.8 million fatalities from collisions with cell and radio towers and the 1.4 billion to 3.7 billion deaths from house cats.
When you begin weighing up these numbers and start to consider the vast effects climate change will have not only on birds but all species as whole, you begin to notice that wind turbines are part of the solution, not the problem.
You can read more about this topic here.
We hoep this article shed some more light on the overall costs of wind turbines and answered any questions you may or may not have had.
Please feel free to drop your unanswered question in the comments section below and we will be sure to get to it as soon as possible.