CHINA: Maxwell Technologies announced on July 27 that it had installed wayside energy storage ultracapacitors on the Beijing metro.

The 48 V ultracapacitor modules have been installed in two sets of energy storage devices in use on the 26·6 km Line 8. These store energy recovered from regenerative braking of the CSR Sifang rolling stock.

This represents the first commercial metro wayside project carried out under a partnership between Maxwell and CRRC’s Qingdao Sifang Rolling Stock Research Institute that was announced last year. ‘Ultracapacitor energy storage solutions are critical to meet the needs of the growing China rail market’, said CRRC-SRI Chairman Liu Baoming. ‘Working together, we expect to bring more solutions to market as China strives for improved rail efficiencies and reduced carbon emissions.’