Wind turbines face harsh conditions, like icy high winds and the risk of bird strikes.
Even the most well-maintained machines need regular repairs and replacement parts. But sometimes, deciding whether to repair or replace is a grey area. This guide helps shed some light on what decision to make.
Read on to learn about the economic and technical factors shaping a decision on what to do when faced with turbine damage.
Wind Turbines: What’s the Typical Lifespan?
A typical modern wind turbine has a lifespan of around 20 years. That depends on whether the wind turbine has received regular maintenance. Ideally, the owner should inspect and maintain a wind turbine every six months.
Some wind turbines can last as long as 25 years in favorable conditions. Offshore wind turbines have a slightly shorter lifespan because of the weather conditions. Expect these to last around 15-20 years instead.
If the turbine parts are near the end of life, replacing them makes sense rather than applying a fix. Doing so could improve the turbine’s longevity.
Potential Damage to Wind Turbines
Wind turbines are at risk of damage. Without timely repair, it may shorten their lifespan. Typical damage includes mechanical issues like gearbox failure or blade erosion.
The wind turbine could become damaged by the weather. High winds can break blades. Lightening strikes or icy conditions are two other common causes. Saltwater erosion in offshore turbines could also shorten their lifespan.
The Economics of Repairs Vs. Replacements
Whether to repair or replace parts on a wind turbine will often come down to costs.
Repairing will be the most cost-effective option if the damage is minor and cheap to resolve. It means extending the lifespan without a significant additional investment.
For example, minor damage could be a crack in the blade from debris or birds. If left unattended, it could escalate into a significant problem. But a quick repair to the damage can get the turbine running efficiently again without a significant expense.
With significant damage, it may be more financially viable to replace the part instead. That is often the case with an outdated part that’s impossible to replace like-for-like.
Plus, newer replacement parts can bring efficiency improvements. Therefore they offer better cost-savings in the long run.
Technical Challenges of Repairs Vs. Replacements
In addition to cost, it’s essential to consider the technical challenges faced with repairing wind turbines. A lengthy and complex repair to the braking systems for wind turbines might not be the best course of action compared to a replacement.
Any delay will cost a business due to the downtime of that turbine. For example, some parts might be hard to access and require specialized machinery or technicians.
Likewise, a sizeable part like a blade will take effort and heavy machinery to replace, so it may not be worth it for a minor and repairable issue.
Professional Solutions for Wind Turbines
A decision to repair or replace parts on wind turbines should happen case-by-case. It depends on the complexity of the repair, the cost, and the age of the part and turbine.
Reach out to Kor Pak Corporation for professional guidance. We provide engineering specialists and turbine parts to provide you with custom solutions for your turbine and wind energy needs.