Looking to justify your investment in wind energy as far as wind yield is concerned ?
First - are the trees flagging/bent over on your site? If so, then you very likely do have enough wind to justify a wind turbine, assuming the air is free of turbulence and the site is within a few hundred meters of your meter board or transformer.
Still not sure? send us your New Zealand site details and we will provide you with a rough estimate based on wind models and likely yields for the wind turbine(s) you are looking at.
Want to take a closer look at the conditions on your site? Consider one of our wind testing kits - we send you a pre-configured wind tester (anemometer and data logger) which you can put up on one of our towers or your own. Send it back to us at the end of the trial and we can run the numbers for you. $660 for the gear and your results (excluding tower and freight). If you buy a weather station from another source - make sure it is accurate enough or you will be wasting your time.