Monday, September 10, 2012

Here comes the sun


Seoul city just published* a Request For Proposals for small solar power plants across the city.

Seoul Citizen's Solar Power Coop will operate the following sites:
- the Gangseo Agricultural and Fishery Wholesale Market in Balsan-dong, Gangseo-gu (16,635 sqm, 1,600 KW)
- the treatment station in Sangam-dong, Mapo-gu (3024 sqm, 270 KW)
- the Mangu youth center in Mangu-dong, Jungnang-gu (1,094 sqm, 100 KW)
- the Gangdong Bus Garage in Gangil-dong, Gangdong-gu (895 sqm, 90 KW)
- Dongbu Women's Center (Seoul Women's Foundation) in Jayang-dong, Gwangjin-gu (800 sqm, 80 KW)

The remaining three projects shall be handled by consortia:
- Amsa Water Purification Center in Amsa-dong, Gangdong-gu (10,130 sqm, 1,000 KW)
- Yeongdeungpo Arisu Water Purification Center in Yanghwa-dong, Yeongdeungpo-gu (9,177 sqm, 910 KW)
- Gangnam Resource Recovery Facility in Suseo-dong, Gangnam-gu (3,800 sqm, 380 KW)

Overall: 4.43 MW for 45,555 square meters, a classic ratio of 10 sqm for 1 KW.

Nice, but far from the 230 MW announced last may in Seoul's ambitious plan for hydrogen fuel cell power: by 2014, Seoul will boast power plants, plus 102 cells in buildings. Enough to serve 400,000 households.

Well the economics of solar energy are well known, and you have to start somewhere. And anyway, it's good to see Seoul make good use of its roofs, which are also getting greener by the day. I already mentioned a big boost more than two years ago (see incentives and projects in "Seoul Rooftops Go Green"), and this summer, the above pictured Dongdaemun Design Plaza alone has added 20,330 sqm: 55.3% on the tail, 29.7% on the Convention Hall, 14.9% on the Exhibition Hall. Five different species of sedums have been selected: less demanding than grass or other plants for maintenance, sebum is an interesting CO2 trap that also reduces dust concentration in the air.

Now how to fill the 80,000 sqm inside Zaha Hadid's dramatic empty shell? That's yet another challenge for Seoul Metropolitan Government.

Seoul Village 2012
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* "서울시 햇빛발전소 시범사업 제안서 공모 추가 공고" (seoul.go.kr 20120910)

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