setting the right price is a complex exercise with the rapidly decreasing cost of the technologies and particularly in young markets where government capacity in the design of fits may be low and there may be asymmetry of information between regulator and companies partly as a result of their experience with fossilfuel technologies developing countries tend to have greater experience in using traditional procurement methods than with support mechanisms specific to clean energy if used in combination with longterm power purchasing agreements ppas tenders can be an alternative way to attract private investment in clean energy