Working on a variety of projects worldwide I sometimes see unusual requests from customers that want to complement their new wind farm with some nonstandard feature.
I’m collecting here my personal top 5 of “...are you REALLY sure you want it?”. Even if often this type of requirements can lift considerably the price (and make the project less attractive) customers are often irremovable in their request.
#5 – Reserve main transformer. Sometime also poetically called “cold transformer” this is basically a very expensive spare parts to keep parked somewhere in the substation. With a price tag around 1 million it looks like a very expensive price to pay to have a backup in case something goes wrong with the main transformer.
#4 – Residences for the Service technician. In very big wind farm sometimes it’s a good idea to have someone on site 24/7. If the wind farm is in the middle of nowhere it can be also a good idea to provide fully furnished houses.
#3 – Gym. The same Service technician living in the middle of nowhere will presumably need something to do while they are off duty. A properly equipped gym can provide a good use for their spare time.
#2 – Mosque. With a mosque we are becoming very near to the concept of “wind farm town”. It was also a good opportunity to learn something more about the various requirements of this type of religious building.
#1 – Watchtowers. By far the most unusual requirement ever. Basically, a place where an armed guard can watch from a vantage point who is approaching the wind farm, with electricity (you will need to connect it to the substation somehow) and septic tank.
Barvo, Franceso! Great humor!))
In Australia is not uncommon to have a spare main power transformer on site.
Lead time to manufacture a whole new transformer and put it in place in case of a highly unlikely but still possible catastrophic failure is nearly 7 months.
Finance institutions are reluctant to fund a wind farm where there's such a risk, specially in medium to large size wind farms.