Which of your wind sites are due for a repower?

You manage a wind portfolio, and the register for it lives in a spreadsheet someone started years ago. Each site has a turbine model, a commissioning year, and a lease end that may or may not have been updated after the last amendment. Some rows are complete. Plenty are not, because the model changed in a purchase, or the site came in with an acquisition and the file never followed.

When the question comes up, which sites do we put forward for a repower, an analyst on your team opens a public turbine database, a planning portal and the aerial photo of each site. They count towers, check the layout against the model in the register and make a guess at the era. It is slow, it happens one site at a time, and it can happen late: the lease expiry or the end of a revenue contract is already close, and the consent conversation is starting from behind.

This offer does that cross-check across the whole fleet at once. It reads the turbines from imagery, ages them from their footprint and from how far back they show up in the archive, and hands you the list in an order you can work from.

The first delivery is a pilot over the portfolio or region you pick. After that, an annual pass keeps the record current.

Use the list before the formal engineering assessment, so the consent conversation starts with the sites most likely to need it soonest. It sits upstream of energy yield work, grid studies and lease talks. It tells you where to look first, and the rest of the work is still yours.

These are the places where an imagery-based age estimate can mislead you. Each is stated again on the list itself.

1. †1

   A model class, not a model

   A footprint narrows a turbine to a class. It cannot tell you the serial number, the manufacturer's warranty status or what has been swapped inside the nacelle.

2. †2

   Vintage is estimated

   Age comes from footprints and imagery history. It does not come from maintenance records, and it says nothing about mechanical condition or remaining life.

3. †3

   Archive depth varies

   The history reaches as far back as imagery of that site exists. A site with thin coverage gets a wider vintage bracket, and the list says so.

4. †4

   Cloud decides the pass

   Optical imagery needs a clear view of the site. A cloudy pass is retried at the next opportunity in the year.

5. †5

   One pass a year

   You get a point-in-time read of the fleet. Continuous condition monitoring needs data from the turbines themselves.

6. †6

   Consent is out of frame

   Consent status and the odds of approval belong to the planning authority. The ranking says how old a site looks. It does not say whether a consent will be granted.