Page 46 - 2011 SDCA Project

8-4 ENERGY & ATMOSPHERE 2009 Date: 21-Feb-11 New Construction (NC)
For use with:
Sustainability Recommendations back period”, or how long it would take to recoup any premium installation costs in ATLANTA GA - No Energy & Atmosphere Sales Tax Cost Impact Comments
While this category can add the most cost to a project, it can also provide the most
LEED Version 2009 BD&C Project Analysis and Budget
savings over time. Any strategy considered should also include an analysis of the “pay-
7.00%
ADAMS PARK RECREATION CENTER
Burden
36.10%
savings over time.
5.00%
Fee
3.19%
Ins/Fees
-
The first prerequisite for this category will probably add some cost to a project
+
Yes
+/-
of this type. Basic commissioning must be done regardless. We also recommend the
8
20
5
2
35 Points
enhanced commissioning be done as well. There are generally many benefits to the
This is a prerequisite, and will add some cost to the project
added expense, including systems that perform to their design capabilities and a follow
up survey to ensure it continues.
Minimum Energy Performance
Prereq 2
Required
incorporated into the mechanical design.
Fundamental Refrigerant Management
Required
This is a code requirement and is included
Y Y Y Prereq 1 Fundamental Commissioning of Building Energy Systems Required $18,419 Will need a 10% improvement over minimum standards. Ensure this is
Prereq 3
- Optimizing energy performance entails not only looking at the HVAC systems, Per the above note, the design must incorporate additional efficiencies in the
but also the lighting systems and the building envelope. Mentioned above is the roof 2 2 15 Credit 1 Optimize Energy Performance 1 to 19 $54,173 HVAC systems, coupled with the envelope to achieve points in this credit. New
replacement, which should include a much more efficient insulation value. The interior roofing should incorporate added insulation and glazing ahould incorporate
energy efficient and Low-E glass..
lighting should be designed to take advantage of natural day light wherever possible. 1 1 5 Credit 2 On-Site Renewable Energy 1 to 7 $13,923 Provide for Solar Hot Water system. Panels mounted on south side of gym
roof.
For this building, the new addition is designed to provide day-lighting, but inexpensive Commissioning is required the prerequisite, then this should be achievable at
skylights could also be added to the meeting areas and gym to provide lighting when 2 Credit 3 Enhanced Commissioning 2 $10,835 only a little more cost
This should be achievable with current available equipment
conditions permit. These should be coupled with daylight sensors to dim or turn off 2 Credit 4 Enhanced Refrigerant Management 2 Will add some cost to the project, but should be looked at to determine benefits
building lighting when possible. Because of the public and sometimes sporadic use of 3 Credit 5 Measurement & Verification 3 over time.
many of the rooms, it is also recommended that occupancy sensors be installed to turn 2 Credit 6 Green Power 2 This is an owner's operating cost and not a construction cost, but can be
considered.
off lights when not in use. In any case, more efficient fluorescent bulbs should be installed Subtotal $97,349
for energy savings (T-8). Using LED lights will offer even further life cycle savings, though
the initial cost is m ore expensive. The existing windows and storefronts should all be
replaced with more energy efficient insulating glass with low-e coatings .There needs to
be further research and design for the replacement of the older HVAC equipment before
any concrete recommendations can be made, but higher efficiency units should be
considered than just meeting current codes. An energy recovery system should also be
considered from the toilet exhausts. At the gym, there is an existing ventilation/exhaust
system that could be utilized when external temperature and humidity conditions were
favorable. This could save on using the HVAC system at certain times of the year. At the
same time, an Energy Management System should be installed that can provide more
flexible operating environments in all areas to meet the usage needs of the building and
save energy by doing so.
- While solar panels come with a high first cost, you essentially are getting free
power after that. We did not include putting any Photo-Voltaic panels (panels that
directly produce electricity from the sun’s light) because of the high initial cost, amount
of space required and the relatively long pay-back period. We did, however, include a
solar hot water system to provide domestic hot water for the bathrooms, showers and
kitchen. We believe this will have a much shorter pay back period and be worth the
initial cost.
- We did not include adding means to measure and verify energy consumption
in the building, or for the owner to purchase green power, but these items should be
investigated further as the program and design progresses. Incorporating this into the
Energy Management System is recommended.
Red & Green Scene Volunteer Design Charrette 2010
Plans are conceptual and subject to change

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