Langford wind farm questions are answered

Langford wind turbines
Langford wind turbines

Readers have been contacting the Chronicle with their questions about the Langford wind farm. In our exclusive interview Rob Ellis, development manager with the Co-operative Estates answers your queries.

How is the electricity from the wind farm actually passed into the National Grid?

The power generated is connected into the district network about 40 metres from the wind farm sub station.

Local energy users will be the first to draw on the power generated by the wind farm and any surplus power will go into the national transmission system.

Is there a way readers can find out what the farm is generating on a day-to-day basis, especially online?

We are installing a ‘real time’ energy generation data link as part of the wind farm management system. We are looking into how we can make this information available to the public via an online link.

How much energy do the turbines generate, in layman’s terms?

The equivalent power used by around 11,000 average homes over the course of a year.

How tall are they, and why will one or more of the group often remain still while all the others are turning?

A 65 metre tower plus 45 metre blades equates to a 110 metre tip height when the blades are vertical.

During the commissioning period some turbines were turned off, hence some in the group turning and others not.

There will be ongoing routine maintenance required which will necessitate turbines being turned off for short periods of time.

Also in low wind speed conditions the wind may be sufficient to turn some but not all of the turbines due to localised wind speed differences.

Does the farm replace power station energy or supplement it?

The wind farm will contribute towards the UK’s generation mix comprising fossil fuel generation (gas
 and coal), nuclear and renewables (wind, hydro, biomass
& PV).

Intermittent energy generation (for example wind, hydro and PV solar) is managed alongside base load generation (nuclear coal and biomass).

Modern gas fired power stations have an important role to play in this mix because they can respond quickly to any variation in generation from intermittent sources and gas turbines can be turned 
on or off depending on 
the generation from wind, hydro and PV at that particular time.