Offices and retail spaces are power hungry. They need electricity to drive IT and lightening and to provide heating and air conditioning. Installing solar PV on roofs (and on building sides) provides a financial return, a clear statement to customers and a reduction in both carbon footprint and carbon taxes. Until the advent of solar roofs where dead spaces generating nothing but cost. Investment in solar PV turns a roof into a productive asset.
A financial return
A combination of inflation-proofed, government guaranteed income and a reduction in electricity usage provides post-tax returns in excess of 15% for many roof spaces. Well engineered roof top solar PV can easily meet a quarter of a buildings energy needs providing low cost or free electricity. Roof mounted PV also reduces the impact of solar heating during the summer further reducing air conditioning costs.
A marketing return
Building and roof top mounted panels gives a clear and public statement of a company's commitment to meeting it's social and environmental responsibilities. A well sited solar installation can reduce carbon footprints by many thousands of tonnes.