FITs apply to microgeneration projects for the following technologies: wind, hydro, solar photo-voltaic, anerobic digestion and microCHP.  The rates were originally set to produce a very generous 5-8% return on capital and run for 20 or 25 years from the date of installation.  In spite of the bad press that the recent drop in FITs has produced, solar PV installers are still claiming that returns of 14% can be acheived.

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