How the feed-in tariff rules work for an additional installation
Posted by Cathy Debenham on 8 August 2011 at 9:30 am
NB: the rules have changed since this blog was published, and it is no longer applicable
Q: What happens if I have additional solar PV panels fitted - would the whole of my system qualify for the new feed-in tariff?
A: The answer to this question varies, depending on when the first installation was. If you add to an existing installation of the same technology within 12 months it will be treated as an increase in capacity of the same installation.
If you add to a system more than a year after the first part was registered in the Central FiTs (feed-in tariff) Register, it will count as a new station. You will still get the same payments for your original station. The new installation will be rated for the combined capacity of the two systems.
In this case it is an addition to a PV system installed before the 15 July 2009, so the owner is receiving the 'existing generator's' rate of 9.4p for generation, and 3.1p for exported electricity.
If you put in new installation, it will be more than a year since the first one was registered, so it will be considered a separate station. The rate you get will be calculated on the combined size of both systems. So, for example, if your first system is 2.1kWp and you install another the same size, that will take you out of the < 4kW category, and you will be paid 37.8p per kWh generated. If you install a 1.8kWp system, you'll get 43.3p, but you'll be generating slightly less.
Photo by Michael HomanBy Cathy Debenham
If you have a question about anything in the above blog, please ask it in the comments section below.
6 comments - read them below or add one