2. Every 3 years, the European Union Agency for the Cooperation of Energy Regulators (ACER) shall establish and make publicly available a set of indicators and corresponding reference values for the comparison of unit investment costs linked to measurement, quantification, monitoring, reporting, verification and reduction of methane emissions, including from leaks, venting or flaring, for comparable projects.
The relevant regulatory authorities referred to in paragraph 1 and the relevant regulated entities shall provide ACER with all the data necessary for the comparison referred to in the first subparagraph of this paragraph.