Green Program & Power saving emergency measures MLIT/BMMC Japan

1. Green Program & Power saving emergency measures MLIT/BMMC Japan

2. Summary • Background - Kyoto Protocol (1997) became effective in 2005 -Japanese governmentpromised 6% reduction of the global warming gas emission in average of 2008-2012 against 1990 level. • “Team –６％ challenge” (2005～2009) - Many technologies on reducing global warming gas developed. “Green guideline on survey & planning” , “Green Program” … - 28℃/20℃ rule, cool biz, warm biz etc. • “ Team -6% challenge ”to “Challenge 25 campaign “ (2009～) - 25% reduction by 2020 against 1990 level • The Great East Japan Earthquake and Tsunai (2011.3.11) - Fukushima Nuclear accident caused power crisis.

3. Green program on government buildings • Green program on government buildings is an integrated and systematized program(2010~) . Its views are; - Mitigating environmental impact throughout the life-cycle - Considering the characteristic of project and project site - Cooperation with the operation and maintenance • The components of the green program are - Reducing global warming gas emission - Promotion of 3R(Reduce, Reuse, Recycle) - Introduction of solar panels and roof gardens - Environment-oriented design proposal/ESCO - LCEM tool – key technology on evaluating HVAC systems - CASBEE – an evaluation system similar to LEED - Promotion of using wood in government buildings etc.

4. Promotion of use of wood on government buildings • The Act for Promotion of Use of Wood on Public Buildings, etc. - The public authorities have to strive for use of wood on public buildings which they build. • The fundamental promotion policy of the Government of Japan - The government shall fundamentally build by wood their buildings which don’t need to be fire-resistive buildings. • The preparation of guidelines, etc. by the MLIT - The Guideline for Designing Wooden Government Buildings ( May 2011)

5. The 2011 East Japan Great Earthquake

6. Power saving emergency measures Y2010 Y2011 9a.m. ~20p.m. • Expected power crisis and the result of power saving measures 2011’s prospect Max. supply 45million KW Max. demand 55million KW 15% saving target for large users(over500KW) • Emergency measures - lighting, computer, coffeemaker etc - stop, reduce, shifting activities - PDCA cycle, review standard, level - telework, summer time etc.

7. What is working? What is not working? Are “up-front” costs a factor? • What is working in the area of green innovation? - LED lighting fixtures - Power saving measures resulted in reducing 15~30% . - “Mottainai mentality” comes back in our mind. - Reducing lighting fixtures, excessive illumination • “What is not working?” is nearly the same with “expensive up-front costs” - Expensive renewable energy e.g. solar panel , wind power etc. - Task ambient system • Mid-/long term energy strategy have gone through the review

8. How does employee/client behavior factor into sustainability goals? • Learning from power saving emergency measures • Three factors to achieve goals are • Introduction of the advanced technologies into HVAC etc. • Improving operation and maintenance e.g. LCEM tool simulated 45% peak-cut power demand at the max. • Discipline, mentality • Behavior is an important factor, but it still needs investigation and analysis. • To control behaviors, 3 types of measures are considered. • Compulsory measures : turn off all lights at designated hour • Educational measures : appointing energy saving leaders • Self-disciplined measures: indicating screen, PR • What we have learned from the experience of the great earthquake is the importance of self-disciplined attitude and mentality.

9. Thank you for your attention

10. Simulation of effct of power saving measures with LCEM tool • Effect of compound of measures ①Cool Biz ②Reduction of illumination
③Reduction of fresh air
④Continuous air-conditioning
⑤Priority of non-electricity chiller ⑥Lower temperature cooling water ⑦Cleaning of coil & cooling tower
⑧Higｈer temperature of cold water ⑨Decrease of number of operating steps of chillers
⑩Decrease of flowing quantity & pressure of cold water & cooling water PowerconsumptionKW STANDARD CASE COMPOUND CASE hour(7/18)