Back in December 2006, I asked the following question about wind turbines, while awaiting planning permission: 'What knowledge about the process of selection, planning, grants, installation etc do you have now, which you wished you had at the start?'
If I was asked the same question now, first on my list would be: make sure that you and/or your installer have talked to your electricty company about the practicalities of grid connection. I needed my supply 11000/240 volt transformer retapping as my supply voltage was 253 volts, leaving insufficient operating range between 253 and 260 volts, when the inverter disconnects from the grid. This took £1076 and 4 months to sort out. United Utilities, my regional electricity company, has a target time of answering questions in 90 working days and my experince suggests that they aim to take 90 days, even if it could be done quicker.
You may need to go down to a 5 or 6KW machine to be able to export under the G83 rules.
The other useful information that I learnt is that everthing takes longer than expected. My foundation metal work did not arrive until two days before I would had to cancel the prebooked readymix delivery and helpers, my actual instalation was delayed two weeks, waiting for a delayed delivery, I believe because Proven's subcontractor could not provide the tower on time. After installation, waiting for spare parts has been the major source of delay in sorting out problems, with two delays, each in the order of 4 weeks.
Regards

Simon

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Simonridout