I’ve noticed that a Wind Turbine that is approximately 500m from my private strip is showing on your Chart approximately 3 miles in the wrong place, is this something that you are interested in being advised about and are able to correct if so a I can supply the correct coordinates as confirmed from satellite map from your waypoint facility .

Please give us the details on here, most importantly what country. We will need to report the error, if that's what it is, to the country responsible for publishing the obstacle data.

UK map. N 52 15 32 W 001 07 14 Wind Turbine Location.

You have just given me a coordinate at which I can clearly see a wind turbine if I use Google Maps. So I don't think our data is wrong in that respect.

Did you have a different coordinate at which you believe an obstacle exists (matching the usual criteria) but we do not have it?‌

I think the OP is trying to say that there is a wind turbine at N 52 15 32 W 001 07 14 which is not shown on the SkyDemon chart, but which is (as you observed) visible on Google Maps. 

Furthermore‌‌ there are two wind turbines shown in SkyDemon a few miles south east of this location, near Weedon Bec, which cannot be seen on Google Maps.

Yes as T67M advises about the 2 Wind Turbines a few miles South East of this location this is my local flying area and I’m am not aware of the these to Turbines and assume one of them should be the one close to my Strip, next time I Go flying I will have a closer look and then advise on here whether I can see them as I can’t see them on Google maps or earth but they could have been erected since their last Photo Shoot but I’m sure I would have noticed them if they were there when I’m flying around.

Obstacles are included in SkyDemon if they're 300' or higher, which is pretty standard inclusion criteria for enroute VFR charts. Occasionally we include shorter obstacles but that depends on the original data quality for the country concerned. Is the wind turbine at the coordinate you originally mentioned that high?

‌Dozens of obstacles are added in the UK every 4 weeks and it's not unusual for them to spring up where Google's aerial imagery has not yet been updated, which is often only every few years.‌