3.—(1) An application for the grant of an environmental permit under regulation 13(1) for an installation generating waste heat at a useful temperature level, other than a relevant installation falling within paragraph 2(1), must contain a cost-benefit analysis.
(2) The regulator must exercise its relevant functions to ensure that an application for a variation of an environmental permit under regulation 20(1) is made before the energy plant of an installation generating waste heat at a useful temperature level, other than a relevant installation falling within paragraph 2(2), is substantially refurbished.
(3) The regulator must ensure that an application for a variation of an environmental permit under sub-paragraph (2) contains (in addition to the information required by paragraph 2(1)(b) of Schedule 5) a cost-benefit analysis.
(4) The cost-benefit analysis required by sub-paragraphs (1) and (3) must include an assessment of the cost and benefits of—
(a)utilising the waste heat to satisfy economically justified demand, including through cogeneration, and
(b)the connection of that installation to a district heating and cooling network.