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Article 4
The measures of energy efficiency improvement specified by article 4 are—
(a)air source heat pumps;
(b)biomass boilers;
(c)biomass room heaters (with radiators);
(d)ground source heat pumps;
(e)micro combined heat and power;
(f)micro wind generation;
(g)photovoltaics;
(h)solar water heating;
(i)transpired solar collectors;
(j)water source heat pumps.
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