Proven energy are one of the longest established manufacturers of small scale wind turbines. Established and still operating in Scotland, they have an enviable reputation for robust, rugged, no nonsense machines. 
 

EOLTEC turbines are relatively new to the UK but combine elegant good looks with state of the art control systems and good performance. They have available a 6kW unit and will soon be introducing impressive 25kW and 75 kW units.