FAQs

What is solar PV?

PV stands for Photo (light) Voltaic (electric). Solar PV panels convert light into electricity. Note the word light, not sunlight. They continue to produce electricity on cloudy days and their output will be higher, the brighter the light is.

What does an inverter do?

Inverters change the Direct Current (DC) from the panels to Alternating Current (AC) needed for your school and the grid. It’s essential the correct type of inverter is used and that they’re located in the right place. They are often citied in plant areas or outside.

How much will the school save on electricity bills?

Using an industry recognised calculation tool we have estimated an annual saving of £4,360 per school. This is subject to orientation, sunlight and other factors.

What size solar PV system can be fitted on the school roof?

The solar PV system size will be subject to many factors including roof space available, structural condition and electrical supply to the school.

How long do solar panels last?

Solar PV panels gradually degrade over time. Typically they will lose around 15 per cent of their power over 25 years with some high quality panels only degrading around 2.5 per cent over 25 years. This also varies depending on the quality of the panel. Quality panels with maximum lifetime will be installed.

Who will own and maintain the solar panels?

Once the solar PV has been installed a handover will take place. The school will be assisted by the contractor in ongoing maintenance for a minimum of 12 months. It will then be the school’s responsibility to maintain the panels.

The system will be subject to a statutory check of electricals at five years, and external panels will require cleaning at an anticipated annual cost of no more than £500.