The lifetime of a solar panel depends on its quality and age. Generally, the older a solar panel gets, the less efficient it becomes. The majority of modern solar panels come with 20-30 year warranties, which means that they’ll stay at a good efficiency level for at least this long. Some panels can stay efficient for as long as 40 years, while others won’t last this long.
Kensington and Chelsea
The Royal Borough of Kensington and Chelsea is an inner London borough of Royal borough status, towards the west of the centre. The borough was created in 1965 from the former boroughs of Kensington and Chelsea. Kensington's Royal Borough status was inherited by the new borough. It covers an area of 4.68 square miles. As the smallest borough in London and the second smallest district in England, this urban area is amongst the most densely populated inside the United Kingdom.
According to estimates from the middle of 2014, the borough has a permanent population of approximately 156190 individuals.
The borough is immediately to the west of the City of Westminster and towards the east of the London Borough of Hammersmith and Fulham. It consists of big museums and universities in Albertopolis, department stores such as Harrods, Peter Jones and Harvey Nichols, and embassies in Belgravia, Knightsbridge and Kensington Gardens. It's home to the Notting Hill Carnival, Europe's biggest. It includes many of the most highly-priced residential districts in London and even in the world, in addition to districts with high levels of social housing and poverty. The local authority is Kensington and Chelsea London Borough Council. The borough's motto is Quam Bonum in Unum Habitare, which is often roughly translated as 'How good to dwell in unity'.
