Quadrino made his comments during a conference call on the firm's 2008-13 investment plan, which is worth EUR6.2 billion.
Edison estimates it will emit some 12 million metric tons more of emissions annually than allowed.
The Milan-based company expects to cover 85% of this amount via reimbursements from its renewable energy production and transfer to captive clients. The remainder can be offset by passing the cost of the emissions through to electricity prices or by investing in international energy conservation projects, which accrue emissions credits.
Edison doesn't "see a negative economic impact in the profit and loss account" from its emissions estimate during the period covered by the E.U.'s scheme, Quadrino said.
Italy still needs to present to the European Commission a new carbon emissions plan with specific sector reductions after the E.U.'s executive arm cut the country's proposals by 6.3% to 195.8 million tons annually of allowances earlier this year.
Quadrino said he expects Italy's new emissions plan to be released by the end of the year.