Revision history [back]
Sadly, compared with 30 years ago, when I last bought one, prices have shot up. Here is a site with a complete system - 50W turbine, mast, battery, controller & inverter. If you use 12V LED lights, you would not need an inverter and you could have far more lights as their power consumption is a fraction of other lighting systems. Price is £840 for the full kit.
https://www.windtrap.co.uk/the-mini-budget-wind-turbine-kit-50w-12v-350-p.asp
Alternatively, there are vertical axis turbines of similar power - in some situations, they may be the better option but tend to be more pricey - around £500 just for the turbine, without any of the other components, including the all important battery!
https://store.leturbines.com/le-v50-vertical-axis-turbine/
Cheers… Gavin