The Project
After experiencing significant issues with the Endurance E1320 turbine, it was time to repower at Rerrick Park Farm. Repowering is a well-structured process that involves replacing an existing turbine (or turbine head) with a more efficient, higher-performing model. In this case, we repowered with a Vestas V27, which delivers 2.5x more energy and is backed by 24/7 specialist support.
The Challenge
A dairy farm with over 1250 cows – Rerrick Park Farm – had been relying on an Endurance E1320 wind turbine since 2015, but it could no longer keep up with the farm’s growing demands. They were facing two major issues with the machine.
The manufacturer had gone out of business, meaning:
- No insurance
- No warranty
- Expensive repairs
- Hard to source parts
The turbine was often broken, meaning:
- No energy generation from the turbine
- They lost Feed-in-Tariff payments
- Higher energy costs
- Reduced profits per litre of milk
Essentially, the turbine was costing the farmer in three ways: he was paying for repairs himself, he was importing power at higher rates, and he wasn’t being paid for his Feed-in-Tariff. The Endurance E1320 turbine had become a massive operational headache. Rerrick Park Farm came to us with one simple yet urgent question: “What do we do?”
The Solution
After reviewing the site, the energy data and the remaining tariff window, it was clear that it was time to repower now.
We took ownership of the project from the outset, managing the Ofgem amendment, maintaining the grid connection, selecting the turbine and securing planning consent. With any repowering project, the main consideration is matching the right turbine to the site. In this case, we advised the Vestas V27 for Rerrick Park Farm, and we configured it to allow them to keep 80% of their Feed-in-Tariff while preserving the option to increase output in the future once tariffs end.
“Our understanding of repowering helps us connect all the moving parts so the project works in practice and delivers clear long-term value for the farm,”
says Dave Anderson, Director.
Retaining your tariff (how it works in practice)
If you’ve already got an 80 kW turbine and choose to repower with a 100 kW turbine, you will receive FiT payments proportionally. In this case, 80% of the total generation remains eligible.
Losing FiT payments is understandably a key concern when repowering. That’s why our team leads each client through this process to maximise retained value while maintaining compliance.
Why the Vestas V27 turbine
We chose a refurbished Vestas V27 from Rengineers for Rerrick Park Farm. Not only is it suited to the wind resource at this site and capable of delivering more than double the output of the previous turbine, but it is backed by 24/7 specialist support.
“With the Vestas V27, Rerrick Park Farm can enjoy the peace of mind they haven’t had in a long time,” says Lauren O’Brien. “It’s owned, monitored and insured by a team of specialists who are dedicated to making sure it’s running optimally every day. If anything goes wrong, whether it’s a technical failure or a part replacement, they’ll handle it swiftly.”
The Outcome
The results were immediate and measurable. Repowering with the Vestas V27 delivers significantly more power than the previous machine, boosting annual production from 160,000 kWh to 402,000 kWh. The farm can now run entirely on self-generated energy, increasing profit per litre of milk and allowing more control over operational costs.
This machine includes:
- A 20-year warranty
- Parts & labour guarantee
- All maintenance expenses covered
- 24/7 remote monitoring
- Repairs complete within 48 hours
- Compensation for income lost after 48-hour downtime
- Preventative maintenance
- Specialist support from Rengineers
Considering Repowering?
Repowering does more than increase energy production – it extends the lifespan and value of your site. Since tariffs have a fixed end date, the timing of repowering is critical. Acting too late limits your options and reduces the return on your investment.
If you’re operating with an Endurance, Orenda, Argosy, Northern Power Systems, WES, C&F 75 or C&F 100, talk to us about repowering to a Vestas V27/V29 today.