SA to NSW electricity connection tested

State and territory energy ministers have agreed to fast-track testing for a plan to connect South Australia to NSW's energy network amid a power crisis in the south.

SA Energy Minister Tom Koutsantonis used Twitter to reveal the unanimous decision of the COAG energy council to expedite a regulatory test for an SA to NSW interconnector.

Power prices in SA have soared as the state relies more heavily on intermittent renewable energy and an interconnector with Victoria is disrupted due to an upgrade.