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Islay Estate Renewable Energy Project

Introduction

In 2021 we assisted a Client to rationalise their power usage across their site. It comprised a large house, a smaller cottage, an office and a spa building including a swimming pool and gym area.

Previously the site had individual supplies from the grid, and a 20kW wind turbine that was feeding the spa building. It made sense at the time because the spa building was the biggest consumer. However, with time, usage changed and whilst the wind turbine was exporting power on one supply, the Client was purchasing it back from their energy supplier for their other properties nearby, at 5-6 times the price. By bringing the supplies together, we were able to supply all sites on the Islay Estate with renewable power from the wind turbine.

How Proterra Energy developed this renewable energy project on Islay

We also fitted a large backup generator that gave the Client security of supply during grid instability. Their old Lister had served its time, and could only supply limited consumers, which didn’t now meet with the Client’s requirements. With the rationalisation of the supply points, the new generator was able to service consumers across the site. We linked the generator with the wind turbine to make sure that the two did not argue (a good analogy of much larger-style grid challenges across the country!). We also worked with our local partner Iain Woodrow electrical contractors, who had upgraded the main site electrics, and we fitted 2 EV chargers at the same time.

This year, the wind turbine that had been stuttering along became too much of a liability. We worked with the Client to understand the issues with the turbine, and their frustrations with its operation. The old C&F 20 turbine was replaced with a 13kW Gaia turbine, (now G-11 from Ryse Energy). Whilst the maximum output of the turbine is reduced compared with the old one, there were a number of key benefits:

  • The site is split phase – there are not many suppliers of split phase turbines but the G-11 is one.
  • It works… It has had a much better up-time than the old turbine and therefore on an average annual basis it generates commensurate amount of power.
  • We had a ladder fitted to the mast – which means the majority of annual servicing can be done without dropping the tower and the hassle of getting large plant booked onto ferries and across to the island.
  • It has easy-to-access remote monitoring which means we can provide quick support to the Client, from a distance.

This was a good renewable energy project on Islay with great support from T.A. Wood contractors on the Island.

Specifications

Common

Power

13kW

Location

Islay

Commissioned

2021

Specific

Testimonial

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Additional Information

How Proterra Energy developed this renewable energy project on Islay

We also fitted a large backup generator that gave the Client security of supply during grid instability. Their old Lister had served its time, and could only supply limited consumers, which didn’t now meet with the Client’s requirements. With the rationalisation of the supply points, the new generator was able to service consumers across the site. We linked the generator with the wind turbine to make sure that the two did not argue (a good analogy of much larger-style grid challenges across the country!). We also worked with our local partner Iain Woodrow electrical contractors, who had upgraded the main site electrics, and we fitted 2 EV chargers at the same time.

This year, the wind turbine that had been stuttering along became too much of a liability. We worked with the Client to understand the issues with the turbine, and their frustrations with its operation. The old C&F 20 turbine was replaced with a 13kW Gaia turbine, (now G-11 from Ryse Energy). Whilst the maximum output of the turbine is reduced compared with the old one, there were a number of key benefits:

  • The site is split phase – there are not many suppliers of split phase turbines but the G-11 is one.
  • It works… It has had a much better up-time than the old turbine and therefore on an average annual basis it generates commensurate amount of power.
  • We had a ladder fitted to the mast – which means the majority of annual servicing can be done without dropping the tower and the hassle of getting large plant booked onto ferries and across to the island.
  • It has easy-to-access remote monitoring which means we can provide quick support to the Client, from a distance.

This was a good renewable energy project on Islay with great support from T.A. Wood contractors on the Island.

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