Since the introduction of the FeedIn Tariff (FiTs) Scheme in April 2010, homeowners interested in carbon emission reduction have become increasingly drawn to the clear financial benefits of a MSC approved solar photovoltaics system installed on their roof. Connected to the national grid, an income can be earned for surplus electricity generated, which can be used, for example, to supply hot water for daily showers or bath if a solar thermal system is fitted.Generally, a solar panel array of between 1.5 and 4 kWp is suitable for most domestic dwellings, which will yield an income of 43.3p per kWh and an additional 3.1p per kWh for excess electricity generated. All payments are tax-free and index-linked for an entire period of 25 years.While solar panels are categorised as a 'permitted development' in England and Wales and will not require local council planning permission they must not be installed above the ridge line of a property and some restrictions may apply if a listed building or located in a conservation area.The size and type of solar PV cell, plus property location and individual household energy needs, are all major factors that a solar PV installer will need to assess when specifying the right system for the homeowner. In addition, in order for a houseowner to qualify for the FeedIn Tariff scheme, they must use a MCS accredited installer and solar panel system.Homeowners choosing a solar PV installer will be carefully looking and checking to see that the installers are competent to carry out the work to the required standard and the system can provide to the level of consistent energy required. In other words, as is?