HomeMy WebLinkAbout11 Building Energy Audit Agenda Item # I I
TRUCKEE DONNER I
PUblic Utility District
WORKSHOP
To: Board of Directors
From: Kathleen Neus
Date: January 19, 2011
Subject: Discussion Regarding the District Headquarters Building Energy
Audit
1. WHY THIS MATTER IS BEFORE THE BOARD
The Board of Directors receives and reviews District reports. The Board has requested
that this item be reviewed with the Board.
2. HISTORY
In October of 2009 the District issued a Request for Proposal (RFP) for the TDPUD
Building Energy Use Assessment and Improvement Study. Subsequently the Board
awarded the contract to Enovity Inc. at the November 4, 2009 meeting.
The purpose of the study was to determine opportunities to save energy through both
operational/maintenance improvements and cost-effective capital investments. The
outcome of the assessment is to have a prioritized list by cost-effectiveness of
opportunities to save energy and money. Enovity Inc completed the study, attached, in
January 2010.
3. NEW INFORMATION
The Enovity Report provided the District staff with a prioritized list of improvements
and capital investments. This information has been summarized in Table E.1, page 4
of the report (Attachment 1). Measures identified in the report are being evaluated for
feasibility, have been completed or are scheduled for completion this summer.
The following Energy Efficiency Measures have been identified as being strongly
advantageous to the District:
EEM 1-3 Correct Boiler Deficiencies
Due to the age of the boilers and appurtenances, there have been some
failures of one or the other of the boilers. For this reason it is not been the
opportune time to isolate one of the boilers. Currently waiting on pricing for the
automatic stack dampers.
EEM 4 Insulate Garage Doors
Currently out for quotes on the cost to insulate all garage doors including a
metal skin.
EEM 5-8 Install Occupancy Lighting Controls
Many occupancy sensors and bi-pass timers have been installed throughout
the building. New areas are continuously identified that either a occupancy
sensor or bi-pass timer would be appropriate.
EEM 9-10 Implement Scheduled Operation of heaters in the warehouse, electric and
water garages
Programmable thermostats are on order and should be installed by the end of
February.
EEM 11 Install Circulation Fans in the Warehouse
This project requires evaluation as to the location of the fans. The fans need to
be places where the location will not obstruct the ability to place material on the
higher shelves and can be easily serviced.
CAPITAL MEASURES
CM 1 Install Condensing Boilers
Currently working on developing specifications for the purchase and installation
of new condensing boilers.
CM 2 Install Direct Digital Control (DDC) System Installation
This measure would be integrated into the boiler replacement
OPERATIONAL & MAINTENANCE MEASURES
O&M 1-6 Fan Coils
All items related to fan coils have either been completed or are in the process
O&M 7 Boiler Controls
Due to boiler failures this has been put on hold until the situation stabilizes
O&M 8 Repair Damper in Warehouse
On the list, should be completed before summer
O&M 9 Re-enable CO Sensors
This project has been completed
OCCUPANT COMFORT MEASURES
OCM 1-2 Ventilation
These measures are part of a bigger picture. There is inadequate ventilation
throughout the building but this is not a quick fix and will require.
OCM 3-5 Cooling
As part of the Re-roof project the Board approved the installation of additional
insulation (R12) on the roofs over the office areas. The insulation has
improved the comfort in the summer and the winter months. This project is on
the list but there is many other items that need to be completed prior to
installing a whole building evaporative cooler.
Building Maintenance recently purchased a Computerized Maintenance Management
System (CMMS), a windows based program to schedule and track all building
preventative maintenance and repairs. Facilities continues to chip away at the items
that can be handled in house and are contacting vendors to assist in the other areas.
4. FISCAL IMPACT
There is no fiscal impact associated with this workshop item.
5. RECOMMENDATION
Review the report and provide comment.
Michael D. Holley
General Manager