Why use PV on flat roofs?

A flat roof is often a wasted resource and unlikely to be shaded which makes it the ideal location for a PV array and large commercial or public buildings can often have the most suitable energy profile to benefit from a PV array. Additionally, the vast majority of flat roofs are not at eye level and so the PV array is generally hidden from view at street level.

A PV array is safe and easy to install and delivers energy close to the point of consumption.

Drivers for New Build Construction

Incorporating photovoltaic panels into a design brings all the benefits of low maintenance renewable energy generation to a project. Below are just some of the key drivers for choosing a PV scheme in a new build application:

  • BREEAM requirements for buildings often call for site sourced renewables. Minimum of 30% CO2 reduction from site based renewables is required to achieve maximum credits.
     
  • Satisfying the obligations of the ‘Merton Rule’ that now applies in many local authorities. This requires a development to ensure 10-20% of a building’s energy usage is supplied by site sourced renewables.
     
  • Scottish government has tightened code requirements calling for a minimum 1.5kWp per plot for new homes.
     
  • Provide energy security for the future and save money.

Drivers for Current Roofs

Retrofitting photovoltaic panels brings all the benefits of low maintenance renewable energy generation to your project. Below are just some of the key drivers for choosing to add PV to an existing flat roof:

  • Provide energy security for the future and save money.
     
  • Reducing carbon footprint.
     
  • Minimum Energy Performance Standard (MEPS) for private rented properties in 2018. Minimum energy standard to be an EPC rating of ‘E’ - 20% of commercial properties are thought to have an EPC less than an ‘E’.
     
  • London RE:FIT scheme supports public sector organisations, charities and third sector organisations to reduce CO2 emissions.
     
  • Better Buildings Partnership. Leading property owners who are improving sustainability of existing building stock with collaboration and sharing best practice.