An energy expert says he is "skeptical" of the Australian Energy Market Operator's (AEMO) target to build five major transmission projects within the next 10 years. Yesterday AEMO released its 30-year roadmap for the electricity grid's transition from fossil fuels to renewables, which it said would require more than $12 billion of investment in new transmission lines that should begin "as urgently as possible" to ensure supply was secure in the coming decade. Key points: AEMO's timeline for major transmission targets is flawed, according to an energy expert The Western Renewables Link in Victoria is being delayed due to community opposition VNI West powerlines are proposed in order to connect the Snowy Hydro with Victoria