| Overall Rating | Gold |
|---|---|
| Overall Score | 67.09 |
| Liaison | Mercè Jorba |
| Submission Date | Feb. 29, 2024 |
IESE Business School - Barcelona
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
3.53 / 6.00 |
"---"
indicates that no data was submitted for this field
Part 1. Site energy use per unit of floor area
Performance year energy consumption
| kWh | MMBtu | |
| Imported electricity | 6,449,889 Kilowatt-hours | 22,007.02 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 12,431.40 Kilowatt-hours | 42.42 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 6,793.08 MMBtu |
| Imported steam, hot water, and/or chilled water | 148.26 MMBtu |
Total site energy consumption, performance year:
28,990.78
MMBtu
Performance year building space
70,140.92
Gross square meters
Floor area of energy intensive space, performance year:
| Floor area | |
| Laboratory space | 0 Square meters |
| Healthcare space | 0 Square meters |
| Other energy intensive space | 8,375.38 Square meters |
EUI-adjusted floor area, performance year:
78,516.27
Gross square meters
Performance year heating and cooling degree days
| Degree days | |
| Heating degree days | 1,183 Degree-Days (°C) |
| Cooling degree days | 2,845 Degree-Days (°C) |
Total degree days, performance year:
4,028
Degree-Days (°C)
Performance period
| Start date | End date | |
| Performance period | Sept. 1, 2021 | Aug. 31, 2022 |
Metric used in scoring for Part 1
28.29
Btu / GSM / Degree-Day (°C)
Part 2. Reduction in source energy use per unit of floor area
Baseline year energy consumption
STARS 2.2 requires electricity data in kilowatt-hours (kWh). If a baseline has already been established in a previous version of STARS and the institution wishes to continue using it, the electricity data must be re-entered in kWh. To convert existing electricity figures from MMBtu to kWh, simply multiply by 293.07107 MMBtu/kWh.
| kWh | MMBtu | |
| Imported electricity | 5,603,578.70 Kilowatt-hours | 19,119.41 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 11,073 Kilowatt-hours | 37.78 MMBtu |
Stationary fuels and thermal energy, baseline year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 5,582.50 MMBtu |
| Imported steam, hot water, and/or chilled water | 362.02 MMBtu |
Total site energy consumption, baseline year:
25,101.71
MMBtu
Baseline year building space
55,422.92
Gross square meters
Baseline period
| Start date | End date | |
| Baseline period | Sept. 1, 2018 | Aug. 31, 2019 |
A brief description of when and why the energy consumption baseline was adopted:
---
Source energy
2
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 0.41 MMBtu per square meter | 0.73 MMBtu per square meter |
| Baseline year | 0.45 MMBtu per square meter | 0.80 MMBtu per square meter |
Metric used in scoring for Part 2
8.87
Optional Fields
A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
---
A brief description of energy use standards and controls employed by the institution:
---
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
---
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
---
A brief description of co-generation employed by the institution:
---
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
---
Website URL where information about the institution’s energy conservation and efficiency program is available:
---
Additional documentation to support the submission:
---
Data source(s) and notes about the submission:
We attach to this credit the excel "OP 5-Energy Efficiency of Buildings" to explain and show how we consider our 4 campuses in the calculations.
PART 1:
1. Calculate the parameter* separately for each of the campuses
2. Obtain a single value of the parameter*, through an area weighted average for the 4 campuses (cell I22). This value is 91.66 Btu / GSM / Degree-day (°C).
3. We "search" for the value of the parameter "Total degree-day" that allows us to obtain the value calculated in point 2. The "Goal Seek" tool in excel is used to "find" the value of "Total degree-days" which gives us as a result the "Total energy consumption (site energy) per unit of EUI adjusted floor area per degree-day" calculated in cell I22. The total degree-days value found is: 4.028 (°C).
4. We divide the value calculated in point 3 ("total degree-days") by "cooling degree-days" plus "heating degree-days".
Parameter*: Total energy consumption (site energy) per unit of EUI-adjusted floor area per degree-day.
PART 2:
Since 95% of the electricity purchased at IESE comes from Europe, we consider a source ratio of 2.
Imported electricity by campus, performance year (kWh):
Barcelona: 3,953,789.34
Madrid: 2,072,878.00
Munich: 72,821.67
New York: 350,400
TOTAL: (3,953,789.34 + 2,072,878.00 + 72,821.67 + 350,400) = 6,449,889.01
Energy consumption in European countries: (6,449,889.01- 350,400)/ 6,449,889.01 = 95%.
For this reason, we consider a source ratio of 2.
PART 1:
1. Calculate the parameter* separately for each of the campuses
2. Obtain a single value of the parameter*, through an area weighted average for the 4 campuses (cell I22). This value is 91.66 Btu / GSM / Degree-day (°C).
3. We "search" for the value of the parameter "Total degree-day" that allows us to obtain the value calculated in point 2. The "Goal Seek" tool in excel is used to "find" the value of "Total degree-days" which gives us as a result the "Total energy consumption (site energy) per unit of EUI adjusted floor area per degree-day" calculated in cell I22. The total degree-days value found is: 4.028 (°C).
4. We divide the value calculated in point 3 ("total degree-days") by "cooling degree-days" plus "heating degree-days".
Parameter*: Total energy consumption (site energy) per unit of EUI-adjusted floor area per degree-day.
PART 2:
Since 95% of the electricity purchased at IESE comes from Europe, we consider a source ratio of 2.
Imported electricity by campus, performance year (kWh):
Barcelona: 3,953,789.34
Madrid: 2,072,878.00
Munich: 72,821.67
New York: 350,400
TOTAL: (3,953,789.34 + 2,072,878.00 + 72,821.67 + 350,400) = 6,449,889.01
Energy consumption in European countries: (6,449,889.01- 350,400)/ 6,449,889.01 = 95%.
For this reason, we consider a source ratio of 2.
The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution or simply email your inquiry to stars@aashe.org.