The Dubai Electricity and Water Authority (DEWA) is investing a total of Dhr 4.4bn (US$1.2bn) to develop, install and launch new substations in Dubai. The group will invest Dhr236m (US$64m) to enhance its 400 kV transmission networks (introduction of new technologies and state-of-the-art equipment) and Dhr370m (US$101m) to add 5 new 400 kV series reactors. DEWA has several projects under construction, including a 400 kV main transmission station (investment of Dhr 500m, i.e. US$136m), 114 km of 400 kV overhead cables (Dhr 285m, or US$78m), 17 new 132 kV substations (Dhr 1.6bn, US$436m), and 209 km of 132 kV ground cables (Dh 1.4bn, or US$381m). DEWA has also new 132 kV substations under development (still the tender submission stage). The group has recently launched a 400 kV substation worth Dhr 410m (US$112m) and nine 132 kV substations worth Dhr 1,113m (US$303m) to improve its power grid.