Including two electric substations along SDG&E’s Southwest Powerlink transmission line, the project is expected to help improve electric reliability in the region and integrate the delivery of wind, solar and geothermal power.
"The backbone of our electric system is the transmission grid and adding the ECO substation will substantively improve reliability for east county San Diego residents and facilitate the delivery of more clean, renewable energy to our customers throughout the region," said SDG&E’s president and chief operating officer Michael R. Niggli.
Two substations – a new of 58 acre, 500/230/138kV substation in Jacumba and the to-be-reconstructed substation in Boulevard will be part of the venture. The two will be interconnected by a 14-mile 138 KV transmission line.
Approximately 1,700MW of proposed renewable energy projects expected to interconnect at the ECO and Boulevard substations, accommodating a total of 1,100MW deliverable renewable resources.
Construction of the project is expected to begin later this year.
