Page 176 - The Engineering Guide to LEED-New Construction Sustainable Construction for Engineers

154 Cha pte r F o u r

Comply with the prescriptive measures of the ASHRAE Advanced Energy Design Guide
for Small Office Buildings 2004. The following restrictions apply:
• Buildings must be under 20,000 square feet
• Buildings must be office occupancy
• Project teams must fully comply with all applicable criteria as established in the
Advanced Energy Design Guide for the climate zone in which the building is located
OR
OPTION 3 — PRESCRIPTIVE COMPLIANCE PATH (1–3 points for version 2009)
The two versions are based on different standards. LEED 2.2 originally was worth 1 point
and required the project to comply as follows, but this was replaced prior to LEED 2009 as
the minimum 2 point requirement for EAc1 took effect. Comply with the Basic Criteria and
Prescriptive Measures of the Advanced Buildings Benchmark Version 1.1 with the exception
of the following sections: 1.7 Monitoring and Trend-logging, 1.11 Indoor Air Quality, and
1.14 Networked Computer Monitor Control. The following restrictions apply:

• Project teams must fully comply with all applicable criteria as established in
Advanced Buildings Benchmark for the climate zone in which the building is located.
LEED 2009 requires this prescriptive Option 3 to comply with the prescriptive measures
in the Advanced Buildings (TM) Core Performance (TM) Guide by the New Buildings
Institute (NBI). The requirements and available points are listed in Table 4.0.3. Note that
one point is automatic for EAc1 as its requirements are part of the prerequisite EAp2.
Up to two additional points can be earned by also applying a minimum of 3 strategies
for each extra point from the Enhanced Performance Section 3 strategy list from this
guide, with the exception of Cool Roof, Night Venting and Additional Commissioning
strategies, as these are addressed elsewhere in LEED 2009. The eleven enhanced
performance strategy categories which can be considered are listed in Table 4.1.2.

Section Strategy
3.2 Daylighting and controls
3.3 Additional lighting power reductions
3.4 Plug loads, appliance efficiency
3.5 Supply air temperature reset (VAV)
3.6 Indirect evaporative cooling
3.7 Heat recovery
3.9 Premium economizer performance
3.10 Variable speed control
3.11 Demand responsive buildings (peak power reduction)

3.12 On-site supply of renewable energy
3.14 Fault detection and diagnostics

TABLE 4.1.2 EAc1 Option 3: Enhanced Performance Strategies Available from the
Advanced Buildings™ Core Performance™ Guide (LEED 2009)