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Zero Energy Construction, Now from Buildings to Cities!
- MOLIT announces plans to expand distribution of zero-energy construction -
□ Starting with public buildings over 1,000m2 next year, zero-energy construction will be mandated in stages until 2030, and city-unit zero-energy pilot projects will be enacted for the first time in public housing districts such as the ‘Guri Galmae subway area’ and ‘Seongnam Bokjeong 1’.
□ MOLIT (Minister Kim Hyun-mee) announced the ‘Zero Energy Construction Distribution and Outreach Plans’ that include the ‘District-unit Zero Energy Pilot Project’ that will expand the concept of zero-energy from buildings to cities through reviews by the Presidential Commission on Architecture Policy on June 21.
ㅇ ‘Zero energy construction’ refers to reducing (passive) building energy usage to strengthen insulation and air-tightness, and buildings that minimize energy consumption through energy production (active) using renewable energy equipment such as solar power.
ㅇ Due to increase abnormal climates such as heat waves lately, the need for zero-energy construction is growing to (1) execute national greenhouse gas reduction goals, (2) promote use of renewable energy, and (3) actively respond to microdust issues, thus showing growing importance for expanded distribution.
Stage-by-stage mandatory road map revision for zero-energy construction
ㅇ Application plans for the stage-by-stage zero-energy construction mandatory road map* established in ‘16 will be adjusted. The existing road map was planned to be applied starting with small and medium buildings (500-3,000m2) in ’20, but the road map was revised to begin application in larger buildings (1,000m2) that will be able to offset additional construction costs.
- This is the result of off-site renewable energy production and approval systems being implemented this year and because the renewable energy installation supply mandatory rate system was enacted since ‘12 for public buildings with an area higher than 1,000m2.
- From ‘25, it will be expanded to all public buildings larger than 500m2 and it will become mandatory for private buildings that are larger than 1,000m2. In the case of apartments that account for the biggest proportion, all apartments with more than 30 households will be required to apply this system.
- From ‘30, it will become mandatory for all buildings larger than 500m2.
ㅇ Zero-energy construction will become mandatory from January 1, 2020 for buildings larger than a certain size with the revision of the ‘Green Building Establishment Support Act’ (Apr ‘19) and plans are to explicate the subjects for mandatory application per stage in ’25 and ‘30 in the revised enforcement ordinance scheduled for later this year to offer sufficient time for preparations.
ㅇ Furthermore, when expanding mandatory application to the private sector in ‘25, standards with high performance effects compared to costs such as heating and cooling devices, lighting standards, etc. will be raised stage-by-stage to prevent temporary side effects by raising standards.
- Also plans are to continuously pursue R&D to improve performance and save on costs for zero-energy construction.
Pursuing various types of building customized expansion
ㅇ Until now, zero-energy construction reaped various zero-energy construction project outcomes through the R&D substantiation project (Nowon-gu EZ House, ‘13-’18), pilot project per building type (low floors, high floors, complex type) (‘14~), operation of certification systems (Jan ’17~), etc.
ㅇ Based on such outcomes, plans are to pursue customized expansion strategies according to the features of each type such as public buildings, private buildings, apartments, stand-alone houses, etc. to maintain the expansion and distribution basis.
① In the case of public buildings, full-fledged expansion will be pursued from ‘20 according to the mandatory road map, and for small public buildings (500~1,000m2) that are not subject to mandatory application, technical support will also be provided such as in consulting* until ’25.
② In the case private buildings, PR will be reinforced to actively apply existing incentives to encourage voluntary implementation of zero-energy construction, and additional incentives such as on building-to-land ratio will be discovered and applied.
③ In the case of apartments, plans are to have the public corporation, the Korea Land & Housing Corporation (LH) take the lead to apply zero-energy in high-rise apartments such as in public leases and public housing to procure technological capacities per distribution type and to develop business models.
④ In the case of stand-alone houses, the ‘leased zero-energy standalone housing complex’ pursued as a low-story pilot project will be expanded to additionally supply to a total of 480 homes such as in ‘Sejong (78 units), Dongtan 2 (334 units), Busan Myeongji (68 units).
Expanding zero-energy to districts and cities
ㅇ The district unit zero-energy pilot project will be pursued in two public housing districts such as the ‘Guri Galmae subway area’ and ‘Seongnam Bokjeong 1’, which are project sites approved for district plans in ‘19.
ㅇ A business model to achieve 20% average energy independence (grade 5 zero-energy building) based on installing rooftop solar power panels, which have been proven to be both economical and effective, for the entire project district was established.
- The energy independence rate will be set realistically considering the features per building type, floor space index, etc., and lacking independency will be additionally procured by using public facility sites such as parks, bicycle paths, soundproof walls, etc.
ㅇ Works on maintenance, sales and distribution management of solar power equipment installed in public spaces shall create jobs through business models of consigning to social corporations made up of the socially vulnerable.
- The produced energy will be provided to the public and to those with vulnerable housing conditions to enhance residential and energy welfare such as lighting and heating costs.
ㅇ Various incentive and support plans will also be applied to private buildings for which zero-energy construction is not mandated by law as of yet.
- Sites will be sold to companies with outstanding proposals through the zero-energy design contest, and incentives for building-to-land ratio and floor space index will also be positively reviewed.
□ MOLIT Director General for Architecture Planning Kim Sang-moon said, “Zero-energy construction can also be configured with domestic technologies, but there is still room for improvement as the technological level is at about 78% compared to advanced nations.”
ㅇ He also added, “Through this pilot project, we will expand relevant markets, provide support for technological development through R&D, and offer various incentives so that zero-energy construction can be expanded.”
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