Market share leaders in the UK solar & storage sector don’t just dominate nationally—they win by being present everywhere. Three-phase inverters: A clear exmple of regional variationOne striking illustration of regional differences comes from three-phase inverter usage. Our data shows significant variation across the UK:In some regions, three-phase inverters make up less than 20% of installations. Regional leaders in ESSBecause batteries are often sold alongside inverters, it’s no surprise that ESS brands show similar regional patterns. Regional leaders in modules brandsWhen we look at the top three module brands by UK region, some interesting patterns emerge.