Non-suggests-tested Rewards which were previously obtainable under ECO3 but aren’t available on ECO4 involve: Using the ECO4 scheme you can obtain free energy efficiency upgrades to your own home, for example floor insulation or photo voltaic panels, carried out by accredited installers. The ECO4 scheme is regulated by Ofgem, so https://greenhomesgrantwales.blogspot.com/2025/06/take-control-of-your-homes-energy-use.html