Not new but incremental advances in tech has allowed for 1. Solar power to become economical 2. EV's to become viable 3. Smartphones to become very advanced

Not new but incremental advances in tech has allowed for 1. Solar power to become economical 2. EV's to become viable 3. Smartphones to become very advanced and cheap 4. Electric motors to become small and efficient enough for home/commercial drones 5. Advances in heat pump efficiency 6. DC inverter based heating/cooling solutions