How soon will a PV system pay back the cost of installation?
We estimate that a system installed between now and April 2010 will pay back in eleven years. However, in addition, you will carry on receiving a tariff or cashback for a further fourteen years and you will benefit from free electricity for years to come after that. In simple terms, if you were to spend £10,000 on a system today, you would receive over 9% of your investment back per annum.