According to the Clean Energy Regulator, failure to provide the required evidence may result in delayed or rejected STC claims. Essential accreditation and supervisionThe Clean Energy Regulator reiterated that only Solar Accreditation Australia-accredited designers and installers can undertake battery installations eligible for Small-scale Technology Certificates. Battery systems must either be installed by, or under the direct on-site supervision of, an accredited battery installer in accordance with Solar Accreditation Australia rules. Daily installation limits still applyThe Clean Energy Regulator has also reminded installers that Solar Accreditation Australia daily installation limits remain in force. Accredited installers can complete no more than two eligible installations per day, comprising two battery systems, two solar PV (photovoltaic) systems, or one battery and one solar PV installation.