Energy supplier Plutus PowerGen shares rose 8% on Monday after the company said has successfully identified and secured electricity connection agreements with three firms for 260 megawatts of power capacity.The agreements were signed with Western Power Distribution, UK Power Networks and Scottish & Southern Energy on UK sites.Chief operating officer Paul Lazarevic said: "We are delighted to have secured the connections quickly and at a cost within our expectations considering acquiring capacity in the current environment is difficult."We continue to develop the site pipeline, which remains at over 500MW, not including these projects."