As is the case for planning, sectoral Union law in the energy and climate fields sets out reporting requirements, many of which have been useful tools to drive change at the national level, complementary to market reforms, but those requirements have been introduced at different times, leading to overlaps and cost-inefficiency, as well as insufficient consideration of synergies and interactions between policy areas such as GHG mitigation, renewable energy, energy efficiency and market integration.
Faoi mar atá an cás ó thaobh pleanála de, leagtar amach ceanglais tuairiscithe i ndlí earnálach de chuid an Aontais sna réimsí fuinnimh agus aeráide, agus uirlisí úsáideacha ba ea mórán díobh chun athrú a chur chun cinn ar an leibhéal náisiúnta, mar chomhlánú ar athchóirithe sa mhargadh, ach tugadh na ceanglais sin isteach ag amanna difriúla agus dá dheasca sin tháinig ann d'fhorluí agus neamhéifeachtacht costais, agus níor tugadh go leor airde ar shineirgí agus ar idirghníomhaíochtaí idir réimsí beartais amhail maolú gás ceaptha teasa, fuinneamh in-athnuaite, éifeachtúlacht fuinnimh agus comhtháthú margaidh.