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In particular, the adjustment of the "heavy electric light hot" guiding ideology, is developing a "renewable energy heating guidance", December 12, 2012 the National Development and Reform Commission will be included in the fifth solar thermal energy-saving products catalog, relevant ministries for the solar thermal industry development and application made a lot of guidance, implement measures and related support policies; many provinces and cities have also introduced the corresponding specific policies and measures, governments at all levels have introduced mandatory installation of solar water heaters policies. All in all the countries support and guidance are solar thermal industry development of the fundamental guarantee.

Jiangsu Province provisions since January 1, 2008, within the province's urban area and the following new 12-storey residential and new construction, renovation and expansion of guesthouses, hotels, commercial and residential hot water demand of public buildings, should be unified design and installation of solar hot water systems.

Nanjing has yet to apply the requirements of the construction design review, the new 12-storey residential and new, reform, expansion of hotels, commercial and residential hot water demand of public buildings should be unified design and installation of solar hot water systems. 12-storey building solar water heating system must be installed; 12 floors above encourage residential use of solar energy, such as hanging balcony wall-mounted collectors, etc., unified design and installation. However, if the building has been used for energy-saving technologies, such as ground source, air source, biological sources and other renewable energy technologies, energy efficiency standards higher than 50% of low-power energy-efficient buildings, comprehensive efficiency and reducing energy consumption is not less than the solar hot water system as well as due to planning reasons building orientation, spacing, solar hot water system can not meet the conditions for effective sunshine, after argument by the competent authorities, do not install solar.