How long does solar panel installation take in Watford?

The programme is set after a survey, because scaffolding, roof access and system size vary from house to house. Paperwork often sets the order of work. A system within G98, up to and including 16 A per phase (3.68 kW single-phase or 11.04 kW three-phase), is notified to the network operator within 28 days after commissioning, but a larger system goes through G99 before installation, and MCS says adding a battery to solar is likely to exceed 16 A per phase. On a flat roof in a conservation area, an array also needs an application to the council for a prior approval determination before work starts.