This tweet was written during the regulatory process for the Energy Efficiency Directive. During the update of the same directive in 2018, it is worth repeating this message. It takes time for reality to follow regulation (or regulation to follow reality 😁?). The stock of efficient motors surpassed the share of 50% only 8 years after the efficiency regulation came into force. In the transition towards a decarbonized economy, the last steps are expected to be the hardest. Eventually we will be happy that stringent energy efficiency measures were taken, to avoid that state-of-the-art renewable energy needs to be wasted by energy-guzzling devices from another era.