S.L. 623.7 Art. 13Sub-metering for heating, cooling and domestic hot water.

(1) In multi-apartment and multi-purpose buildings with a central heating or central cooling source, or supplied from a district heating or district cooling system, the supplier shall install individual meters to measure the consumption of heating, cooling or domestic hot water for each building unit, where technically feasible and cost effective in terms of being proportionate in relation to the potential energy savings:

Provided that where the supplier shows to the Building and Construction Authority’s satisfaction that the use of individual meters is not technically feasible or where it is not cost-efficient to measure heat consumption in each building unit, the supplier shall use individual heat cost allocators to measure heat consumption at each radiator unless it is shown by the supplier that the installation of heat cost allocators would not be cost-efficient: Provided further that in those cases, alternative cost-efficient methods of heat consumption measurement may be considered.

(2) The general criteria, methodologies and, or procedures to determine technical non-feasibility and non-cost effectiveness shall be clearly set out and published by the Building and Construction Authority.

(3) Notwithstanding sub-regulation (1), individual meters shall be provided by the supplier for domestic hot water in new multi-apartment buildings and residential parts of new multi-purpose buildings that are equipped with a central heating source for domestic hot water or are supplied from district heating systems.

(4) Where in the assessment of the Building and Construction Authority, multi-apartment or multi-purpose buildings supplied from district heating or district cooling, or buildings with own common heating or cooling become prevalent, the Regulator shall put in place transparent, publicly available national rules on the allocation of the cost of heating, cooling and domestic hot water consumption in such buildings to ensure transparency and accuracy of accounting for individual consumption:

Provided that when the Building and Construction Authority determines that multi-apartment or multi-purpose buildings supplied from district heating or district cooling, or buildings with own common heating or cooling have become prevalent, the Regulator shall be officially informed of such a decision and the Building and Construction Authority shall provide to the Regulator all the necessary information and data relevant to the reaching of such a decision.