Upload
steven-hodges
View
215
Download
1
Embed Size (px)
Citation preview
Hotel Monaco
September 18-21, 2011
Washington, DC
Green Program & Power saving emergency measures MLIT/BMMC Japan
2
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.
3
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)
The 2011 East Japan Great Earthquake
5
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.
6
Y2010
Y2011
9a.m. ~20p.m.
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.
Thank you for your attention
9
10
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)