TORONTO - Ontario's Progressive Conservatives say Hydro One may be in contempt of the legislature after the ombudsman said the utility misled the province about its billing problems.

Ombudsman Andre Marin issued a special report Monday accusing Hydro One officials of lying to the Ministry of Energy about the scope of billing problems created by its new computer system.

PC house leader Steve Clark admits Hydro One didn't make any misleading statements in the legislature, but he says officials could be in contempt for misleading the ombudsman and the Ministry of Energy.

Clark says the ombudsman was investigating complaints about Hydro One raised by dozens of MPPs, and not being truthful to him was the same as misleading the legislature.

He says Hydro One "blocked and deceived at every step" as MPPs sought information for constituents who were hit with huge, and often erroneous, electricity bills.

The Liberals insist Hydro One never mislead the legislature and want the contempt charge dismissed.