Development & Construction Department (D&CD) is responsible for implementation/execution of major power transmission, sub-transmission & Infrastructure development. D&CD has highly qualified; dedicated and competent team lead by Executive Director, who strives to complete the projects on schedule through proper planning, monitoring and adoption of high quality and safe construction practices using state of the art technology.

Currently the Department consists of following offices:

A. 400 kV Punatsangchhu – I Transmission Project Office at Lobeysa

The Project Office, headed by a Superintending Engineer with three divisions at Kamichhu in Wangdue, Dagapela and Lhamoizingkha in Dagana, each headed by a Sr. Project Manager, is responsible for execution and implementation of the massive Punatsangchhu – I transmission system covering 110 km of Punatsangchhu I – Monitar and 100 km of Punatsangchhu I – Lhamoizingkha 400 kV D/C lines for evacuation of power from Punatsangchhu-I Hydro Electric Project to India.

B.220 kV Dagachhu – Tsirang – Jigmeling – Lodrai Transmission Project Office, Tsirang

The Project office, headed by a Superintending Engineer (Projects) with two divisions at Tsirang and Jigmeling in Glephu, each headed by a Project Manager is responsible for construction of about 60 km of 220 kV D/C Dagachhu – Tsirang – Jigmeling – Lodrai transmission line with associated 220/66 kV and 220/132/33 kV substations at Tsirang and Jigmeling respectively. Upon completion, this program would have Dagachhu Hydro Power Plant integrated with the Western Grid Point at Tsriang, extended up to Jigmeling, the existing 132 kV Tintibi –
Gelephu line of Eastern Grid passing through Lodrai, LILOed at Jigmeling and the line between Jigmeling and Gelephu constructed. With this, the much needed East – West interconnection would be established at Jigmeling and thereon, is expected to result in reliable power supply to the Eastern and Central region.

C.Transmission Construction Section – Central, Trongsa

This office, headed by a Project Manager is implementing the construction of 132 kV Tintibi – Yurmoo; 66 kV Yurmoo – Trongsa and 66 kV Yurmoo – Bumthang S/C Transmission lines, with the Tintibi – Yurmoo – Trongsa line having already completed and charged at 33 kV since October, 2008; thereby extending the grid power from Kurichhu Hydro Power Plant to the people of Trongsa, and further to Bumthang (through existing 11 kV line) who were earlier fed through restricted supply from Chhumey Mini Hydro.

D.Deothang – Rangia Project Office, Samdrupjongkhar

This office, headed by a Project Manager had successfully commissioned the 132 kV S/C Transmission line from Deothang – Rangia in India along with bay extensions at Deothang and Rangia Substations. This line, LILOed at Motanga, Samdrupjongkhar also feeds the Ferro Silicon Factory at Motanga.
Presently, this office is executing the construction of a 132 kV LILO substation at Motanga and the 132 kV S/C transmission line at Nganglam, Pemagatshel to supply power to Dungsam Cement Factory.

Future Plans:

The department has a series of Mega Projects to be executed in the 10th FYP. The expansion of transmission network at Samtse, development of power infrastructure for evacuation of power from future Punatsangchhu – II & Mangdechhu Hydro Power Plant, for export, are some of the major projects in pipeline among the others.