| Overall Rating | Silver - expired |
|---|---|
| Overall Score | 52.54 |
| Liaison | Tom Hartzell |
| Submission Date | Feb. 26, 2020 |
Calvin University
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
3.17 / 6.00 |
Russell
Bray Director of Physical Plant Physical Plant |
Electricity use, performance year (report kilowatt-hours):
| kWh | MMBtu | |
| Imported electricity | 21,959,974 Kilowatt-hours | 74,927.43 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 11,654.80 Kilowatt-hours | 39.77 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 180,935 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, performance year:
Gross floor area of building space, performance year:
Floor area of energy intensive space, performance year:
| Floor area | |
| Laboratory space | 57,530 Square Feet |
| Healthcare space | 3,452 Square Feet |
| Other energy intensive space | 85,557 Square Feet |
EUI-adjusted floor area, performance year:
Degree days, performance year:
| Degree days | |
| Heating degree days | 6,896.40 Degree-Days (°F) |
| Cooling degree days | 924.40 Degree-Days (°F) |
Total degree days, performance year:
Start and end dates of the performance year (or 3-year period):
| Start date | End date | |
| Performance period | July 1, 2018 | June 30, 2019 |
Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
Electricity use, baseline year (report kWh):
| kWh | MMBtu | |
| Imported electricity | 25,073,310 Kilowatt-hours | 85,550.13 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 15,382.70 Kilowatt-hours | 52.49 MMBtu |
Stationary fuels and thermal energy, baseline year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 188,277 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, baseline year:
Gross floor area of building space, baseline year:
Start and end dates of the baseline year (or 3-year period):
| Start date | End date | |
| Baseline period | Jan. 1, 2009 | Dec. 31, 2009 |
A brief description of when and why the energy consumption baseline was adopted:
The baseline year was chosen as it was after any major renovations and building construction. The baseline year is recent enough to capture reliable data from the past and use that to see how much progress we have made with sustainability efforts.
The 2009 (baseline) stationary fuels used on site (188,277MMbtu) was indicated as being in the records. (per Jack Philips' email, 3.18.20). - BRH
Source-site ratio for imported electricity:
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 0.12 MMBtu / GSF | 0.18 MMBtu / GSF |
| Baseline year | 0.12 MMBtu / GSF | 0.20 MMBtu / GSF |
Percentage reduction in total source energy consumption per unit of floor area from baseline:
Documentation to support the performance year energy consumption figures reported above:
A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
See Kill-a-Watt in credit EN-1.
A brief description of energy use standards and controls employed by the institution:
Most areas are heated to 70 degrees F and cooled to 72 degrees F.
(10.25.18) : HDD and CDD were calculated using for FY 2017-18: https://portfoliomanager.energystar.gov/pm/degreeDaysCalculator
which uses the base of 65 degrees-F as stated for Part 2.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
The campus is trying to convert more and more spaces to LED. Many large spaces and spaces with daily usage have already been converted to LED lighting. About 1/3 of street lights have been converted to LED. See more information about CERF at https://calvin.edu/support/energy/
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
n/a
A brief description of co-generation employed by the institution:
n/a
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
Any building remodeling projects would be looked at as a way to evaluate the current energy consumption items and challenge if there are better alternatives available.
Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
The grid purchased electricity comes from 21,000,000+ kWh for Calvin's main bill and ~1,500,000 kWh for the remaining properties in the institutional boundary.
Conversion from kWh to MMBtu was performed with information from the U.S. Energy Information Administration (eia): https://www.eia.gov/energyexplained/index.php?page=about_energy_conversion_calculator
Solar panel power (on-site renewable) comes from Chuck Holwerda.
(JW 1.22.19)
For the performance year energy consumption I placed our imported electricity, steam, and chilled water under electricity because it is all sourced from electricity and we don't have it separated it out. (KM 1.18.20)
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.