BLADE SERVICE. ALL SERVICE OPTIONS

Repairs

Repair turbine blade damage

Lightning strikes, production errors, design errors, or other unpredictable situations: a blade is exposed to many different forces and can be damaged in a variety of ways. It is important to repair damage quickly and expertly to help you minimise yield loss.

Service on demand

The Rengineers specialists are happy to help. If something goes wrong, we can be with you at short notice. No challenge is too great. We are happy to provide the following repair work:

• All possible repair work to blade exterior and interior
• Lightning damage repairs
• Transport, assembly, and disassembly damage repairs
• Lightning conduction system repairs
• Tip cable, tip cam, tip bearing, and tip mechanism repairs and replacements
• Vortex generators and stall frames repairs or installations
• Product enhancement and modification
• Blade or full rotor assembly and disassembly
• Plastic rotor and hub component repairs

Maintenance

Specific blade maintenance

The turbine is subject to regular inspection and/or maintenance overhaul. Blades need periodic maintenance as well. It is important to address defects, erosion and other early-stage damage as soon as possible. An expert eye is worth its weight in gold in this respect. Preventive maintenance saves you money on future maintenance and helps prevent noise problems and major consequential damage.

Continue to achieve returns

You want to ensure continued yield from your wind turbine. Damage has a negative impact on yield. A partnership with Rengineers ensures optimum yield. Minimum downtime, rapid damage repairs, and preventive maintenance: you can count on it.

Inspection

Periodic rotor blade inspection

A wind turbine blade is subject to many different circumstances and forces, resulting in wear. Small tears, delamination, or other flaws form. Dirt accumulates, or the coating may slowly become porous. Timely repairs prevent major failures. Periodic inspection keeps you ahead of them. Based on our findings, we look for the most suitable solution together.

End-of-warranty inspection

Every manufacturer warrants the materials it supplies. Is your warranty about to expire, and do you want to make the most of it? Then book an end-of-warranty inspection. This inspection involves an assessment of the condition of the various components. Product and design faults often only show once the blades have been in service for a while. An inspection before the warranty ends means you can still recover the cost from the manufacturer.

Delivery inspection

Have you placed an order, and do you want to be assured that it is correct? We objectively assess orders for production errors, flaws or transport damage. An expert eye lets us identify irregularities very swiftly. And that is important, considering the fact that blade tips can reach speeds of up to 300 km/h. We inspect the blades to make sure they can handle these forces.

“Optimised blades determine yield”

Refurbishment

As new

Most blades have a lifespan and depreciation period of around 20 years. If you want to use your blades for longer, or if your blades need repair but are no longer in production, Rengineers Blade Service can restore them to as-new condition, often with a better yield than before.

Purchase refurbishment

If you are buying one or more wind turbines, the turbine will likely need to be disassembled. Refurbishment is the shortest route to a fully serviceable blade. Want to prevent unforeseen damage and high maintenance costs? Then have the blades refurbished before they go up.

Lifetime extension

The lifetime extension offered to a rotor blade is something we are happy to put into writing in a report. This report lets you prove to an insurance company, investor, or new owner that the blades are good to go for a certain amount of time. To facilitate these reports, we work with insurance companies and other market agencies. Refurbishment is often an excellent way to extend a blade’s working life.

Yield optimisation

Optimum yield calibration

Correct blade calibration and zero-pitch setting are critical to turbine output. The power a turbine delivers relates directly to the angle at which the blades are fitted. During the turbine’s construction, or following installation and during blade configuration, we can recalibrate the blades precisely. The yield figures show the difference.

Vortex generators to improve yield

The use of vortex generators on blades can improve yield substantially. In many cases, depending on location and circumstance, turbine yield can be increased by up to 5%. Ask our specialists for custom advice. We are happy to help you improve your yield.

Lightning damage

Lightning damage repair

Lightning damage is a potential risk for wind turbines, resulting in damage to the blades or turbine itself. Repair your blades in a timely fashion to prevent yield loss.

Wind turbine lightning conduction

Prevention is better than cure. This certainly applies to lightning damage. Make sure your lightning conduction system works perfectly. During each inspection and maintenance overhaul, we assess the system to make sure it works properly and to prevent major damage.

Damage appraisal

Independent assessment

Damage to wind turbines always leads to issues of liability. Is the owner liable? Has the maintenance company failed to provide suitable maintenance? Is the manufacturer at fault due to design or production error? Different situations may call for an independent appraisal. Rengineers has the in-house knowledge and experience needed to assess different kinds of damage.

Detailed damage report

In a conflict with the manufacturer, nothing is more helpful than an independent damage appraisal firm. We operate brand-independently, and have knowledge and understanding of virtually all makes and types of blades from the past twenty years. Are you looking for a damage inspection? Our experts will produce a detailed damage report and carry out any repairs required.

Cleaning

Wind turbine blade cleaning

A wind turbine does not shy away from poor weather. Different environmental influences can affect the turbine blades in various ways. Depending on the site and the condition of the surface, dirt builds up at different rates. But make no mistake: the yield of a dirty blade is substantially lower than that of a clean, smooth one. Have your blades cleaned regularly to keep output at its best.

Blade interior cleaning

The interior of the blades accumulates grime as well, for example from oil or grease residue from the hub. The fluids have a negative influence on materials if left over time. Want to prevent blade weaknesses? Then have the interior of the blade cleaned as well.

Want to know more about blade refurbishment? Email us or give us a call.

E. info@rengineers.eu
T. +44 (0) 7856 545795