Kenneth Nichols of the AEC said it "became obvious" that the Rickover-Westinghouse pressurised-water reactor intended for an aircraft carrier was "the best choice for a reactor to demonstrate the production of electricity" with Rickover "having a going organization and a reactor project under way that now had no specific use to justify it". This was accepted by Lewis Strauss and the Commission in January 1954. The acceptance of Duquesne Light as the utility partner was announced on 11 March. The ground-breaking ceremony in August was initiated by Eisenhower from Denver where he was giving a talk on atomic energy on Labor Day; Rickover ensured that the unmanned bulldozer pushing dirt did not dig in and stall by having the dozer blade riding along two railroad rails buried under six inches of dirt.