I have just put together a new PV payback calculator on the website.
http://www.navitron.org.uk/page.php?id=139&catId=65Please have a go and leave your feedback (constructive preferably).
Its made up of widgets from a couple of other sites, but cuts out a lot of the time wasters and hopefully is an interesting tool that lets people have a go at specing their own property.
Before we simply had a form which people filled in. We then did all the work at our end often spending a great deal of time trying to find people's houses on google earth, sizing the kits and providing costs and payback information only to hear nothing back, or being told it was a fleeting submission and they weren't really interested. We also got spammed a few times.
Anyway if there are any glaring omissions or tweaks you think need making, please reply. I understand that its not that easy to use unless you follow the instructions to the letter.
Many Thanks.
