2012 Corporate Social Responsibility Report - UMC

3.4 Energy efficiency
3.4.1 Energy Management
Goal:
To enhance the efficient use of energy and minimize
the impact on the earth. Important key measures include
effectively reducing the environmental impact of the
greenhouse effect and enhancing the company’s energy
efficiency.
Method
n Under the CSR Energy Committee, set companywide
energy saving and carbon reduction development
goals and plans, and coordinate/integrate various
departments to save energy and reduce carbon through
promotion strategies and programs. Effectiveness will be
monitored during executive committee meetings held on
a regular basis, with continuous introduction of energysaving
technology, energy improvement plans for related
facilities, and highlights of energy saving achievements
andremarkable results.
n UMC promotes energy saving programs in the office
and public areas through activities and training to enhance
employees’ ideas and habits in energy saving and
greenhouse gas reduction.
3.4.2 Power Consumption reduction
● 2012 reduction target: 1% reduction compared to 2009
● 2012 reduction result: achieved a reduction rate of 2.17%
Power Consumption
Exhibit-1 Power Consumption Yearly Cart
1.71
1.62
1,710,231
1,856,389
1.55
1.49 1.52
1,680,231
1,534,820 1,585,720 1,618,664
1.23
1,998,900
2,080,438
1.42 1.44
2005 2006 2007 2008 2009 2010 2011 2012
Power Consumption(Mwh)
2
Power Consumption per square cm(Kwh/cm )
Power Saving Improvement Activity
2012Y Achieved New Power Saving Activity
Power Saving Activity
Fabmaintenance area and office power
saving by turn off fluorescent lamp.
On-line UPS replace to Off-line UPS
Fabs
6A,8A, 8CD,
8E,8F,8S,12A_1,12A_2,12i
8A,8F,12A_1
Externally Heated Dryer Energy Project 8CD,12A_1
Process tool power saving
8A, 8CD, 8E,8F,8S
n 2012Y Improvement activity for power saving,
accumulated 34,511Mwh (Equivalent to 2.17% of 2009Y
power consumption.), Equivalent CO 2 reduction emission
18,498 tons.
n We made efforts to construct the renewable energy
system. Now, the capacity of the solar power installation in
Tainan Fab 12A is at 500kWp, and the system is working in
Hsinchu Fab 8A at also 500kWp.
2013 Power saving projects
To drive energy saving in process tools, office public areas
use LED lighting instead of T8, off-line UPS instead of online
UPS, and exhaust reduction. We set the target for 2013
of power saving of 20,800 Mwh. The predicted equivalent
CO 2 reduction emission is about 11,115 tons per year.
2013Y Ongoing and Future Power Saving Activity Plans:
Power Saving Activity
To exchange lamps LED replacement T8
for non-fab area
On-line UPS replace to Off-line UPS
Exhaust consumption reduce (Base
on2012 Down10%)
Process tool power saving
To rationalize UPS utilization rate
Increase chilled water 13℃ system
utilization rate form 14% to 20%.
Implement solar panel power
Total natural gas savings in
2012
12,450Mwh
Fabs
6A,8A, 8CD,
8E,8F,8S,12A_1,12A_2,12i
8A,8CD,8F,12A_1
6A,8A, 8CD,
8E,8F,8S,12A_1,12A_2,12i
8A, 8CD,
8E,8F,8S,12A_1,12A_2,12i
6A,8A, 8CD, 8E,8F,8S
12A_1
3.4.3 Natural gas consumption reduction
n 2012reduction target: 5.77% reduction compared to 2009
n 2012 reduction result: achieved a reduction rate of 6.12%
12i
CO 2 reduction
2,257 ton
Natural gas consumption in 2012 is reduced by 6.12% compared to 2009. The
comparison is based on natural gas reduction measures using the same equipment as
in 2009, and excludes factors of production fluctuations and increased consumption from
new fabs.
The quantity of natural gas saving’s measures is a theoretical calculation. It refers to CO 2
emission coefficient of IPCC’s stationary sources and mobile sources in 2006, and the
gas heat value of each factory to calculate the amount of emission.
UMC 2012 Corporate Social Responsibility Report
P.49