100% renewables

With solar panels already installed on dozens of its buildings, the city of Sydney has upped the ante by vowing to source 100% of its electricity needs from solar PV and wind. The commitment was endorsed by city council last week, with a new 100% renewable electricity contract to be negotiated in the coming months.

A recent Australian National University study shows that newly developed geographic information system algorithms can identify prospective sites for off-river pumped hydro projects throughout the world. The researchers, who identified around 530,000 potential sites, said pumped-hydro installations could enable large-scale energy time-shifting, as well as a range of ancillary services such as frequency regulation, which could help to integrate high levels of PV and wind into electricity systems.

Politicians take note: “The energy transition is not a question of technical feasibility or economic viability, but one of political will.” Indeed, according to a new study, it is possible to rapidly transition to a Europe 100% powered by renewables and with zero greenhouse gas emissions. Solar PV leads the charge, followed by wind. Overall, eight policy recommendations have been laid out to achieve this bold goal by 2050.