Hotel Monaco

September 18-21, 2011

Washington, DC

Green Program & Power saving emergency measures MLIT/BMMC Japan

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Summary

• Background - Kyoto Protocol (1997) became effective in 2005 - Japanese government promised 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.

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.

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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)

The 2011 East Japan Great Earthquake

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Power saving emergency measures

• Expected power crisis and the result of power saving measures2011’s prospect Max. supply 45million KWMax. 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.

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Y2010

Y2011

9a.m. ~20p.m.

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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　 　

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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.

Thank you for your attention

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Simulation of effct of power saving measures with LCEM tool

①Cool Biz②Reduction of illuminationReduction of fresh air③Continuous air-conditioning④Priority of non-electricity ⑤

chiller⑥Lower temperature cooling water Cleaning of coil & ⑦cooling tower Hig⑧ ｈ er temperature of cold water Decrease of number of ⑨

operating steps of chillersDecrease of flowing ⑩

quantity & pressure of cold water & cooling water

• Effect of compound of measures

STANDARD CASE

COMPOUND CASE

hour(7/18)