leed ga energy & atmosphere

8/6/2019 LEED GA Energy & Atmosphere

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LEED GA STUDY GROUP:

Energy & Atmosphere



LEED NEW CONSTRUCTION

CHECKLIST

Energy & Atmosphere




CHECKLIST

Energy & Atmosphere

Prerequisite 1: Fundamental Commissioning of Building

Energy Systems

5%-10% savings in energy,

Ensure key building systems operate

properly,

Catch mistakes,

Avoid callbacks,

Prevent equipment failure & litigation!




CHECKLIST

Energy & Atmosphere

Prerequisite 1: Fundamental Commissioning of Building

Energy Systems

Include at least the following in the scope of commissioning:

Heating, cooling, refrigeration, ventilation systems & controls

Lighting and daylighting controls

Domestic hot water systems

Renewable energy systems




CHECKLIST

Energy & Atmosphere

Prerequisite 2: Minimum Energy Performance

3 OPTIONS:

Whole Building Energy Simulation ASHRAE Advanced Energy Design Guides

Core Performance Guide

Intent: To establish the minimum level of energy efficiency for the proposedbuilding and systems to reduce environmental and economic impacts

associated with excessive energy use.




CHECKLIST

Energy & Atmosphere


OPTION 1: WHOLE ENERGY BUILDING SIMULATION

Any building type

Comply with mandatory provisions (ASHRAE 90.1-2007)

Demonstrate energy cost 10% lower than baseline energy

simulation (also per ASHRAE 90.1-2007)




CHECKLIST

Energy & Atmosphere


OPTION 2: ASHRAE ADVANCED ENERGY DESIGN GUIDELINES

Office & Retail up to 20,000sf

Warehouses up to 50,000sf

Implement all measures in applicable Advanced Energy Design

Guide

Download a copy of the Advanced Energy Design Guide at http://www.ashrae.org/publications/page/1604




CHECKLIST

Energy & Atmosphere


OPTION 3: CORE PERFORMANCE GUIDE

Less than 100,000sf

NOT healthcare, warehouse, or lab

Comply with Core Performance Guide

Sections 1 & 2




CHECKLIST

Energy & Atmosphere

Prerequisite 3: Fundamental Refrigerant Management

Intent: To reduce stratospheric ozone depletion.

Requirements:

Zero CFCs in New Buildings

Phase out CFCs in Existing Buildings

* Phase-out plans extending beyond the project completion date will

be considered on their merits.




CHECKLIST

Energy & Atmosphere

Credit 1: Optimize Energy Performance (1-19 pts)

Intent: To achieve

increasing levels of energy

performance beyond the

prerequisite standard to

reduce environmental and

economic impacts

associated with excessive

energy use.




CHECKLIST

Energy & Atmosphere


Option 1: Whole Building Energy Simulation (1-19 pts)

Any building type

Comply with mandatory provisions

Document energy model for design & baseline case per ASHRAE 90.1-2000

Demonstrate energy cost savings (1-19 pts + EP)




CHECKLISTEnergy & Atmosphere


Option 1: Whole Building Energy Simulation (1-19 pts)New Bldgs Existing Bldg Reno Points

12% 8% 1

14% 10% 2

16% 12% 3

18% 14% 4

20% 16% 5

22% 18% 6

24% 20% 7

26% 22% 8

28% 24% 9

-cont- -cont- -cont-

30% 26% 10

32% 28% 11

34% 30% 12

36% 32% 13

38% 34% 14

40% 36% 15

42% 38% 16

44% 40% 17

46% 42% 18

48% 44% 19




CHECKLIST

Energy & Atmosphere


Option 2: Prescriptive Compliance Plan:

ASHRAE Advanced Energy Design Guide (1pt)

Path 1: ASHRAE Advanced Energy Design Guide for Small Office Buildings 2004

Less than 20,000sf Office occupancy




CHECKLIST

Energy & Atmosphere


Option 2: Prescriptive Compliance Plan:ASHRAE Advanced Energy Design Guide (1pt)

Path 2: ASHRAE Advanced Energy Design Guide for Small Retail Buildings 2006

Less than 20,000sf

Retail occupancy

Path 3: ASHRAE Advanced Energy Design Guide for Small Warehouses/Self

Storage 2008

Less than 50,000sf

Warehouse or self-storage company




CHECKLIST

Energy & Atmosphere


Option 3: Prescriptive Compliance Plan:Advanced Buildings Core Performance Guide (1-3 pts)

Less than 100,000sf

No healthcare, warehouse, or laboratory buildings

** Up to 2 additional points are available to projects that implement performance

strategies listed in Section 3, Enhanced Performance. For every 3 strategies

implemented from this section, 1 point is available.




CHECKLIST

Energy & Atmosphere

Credit 2: On-Site Renewable Energy (1-7 pts)

Intent: To encourage and

recognize increasing levels of on-

site renewable energy self-supply

to reduce environmental and

economic impacts associated with

fossil fuel energy use.




CHECKLIST

Energy & Atmosphere

Credit 2: On-Site Renewable Energy (1-7 pts)

Percentage Renewable

Energy

Points

1% 1

3% 2

5% 3

7% 4

9% 5

11% 6

13% 7





Credit 3: Enhanced Commissioning (2 pts)

In addition to prerequisite commissioning (EAp1):

Designate CxA (commissioning authority) to lead/review/oversee

completion of all commissioning process activities

CxA must review OPR (Owner¶s Project¶s Requirements), BOD

(Basis of Design), and Design Documents prior to 50% CD. CxA shall review submittals for compliance with OPR and BOD.

Develop a Systems Manual for operating staff

Verify that requirements for training & staff are completed

Review building operation 8-10 months after completion





Credit 4: Enhanced Refrigerant Management (2 pts)

OPTION 1: DO NOT USE REFRIGERANTS.

This only works if there are no mechanical cooling or refrigeration

systems in the building.






OPTION 2: Minimize Emissions

Identify the refrigerants used in the selected HVAC&R equipment

Calculate ODP (Ozone Depletion Potential) and GWP (Global

Warming Potential) for HVAC&R in LEED online.





Credit 5: Measurement & Verification (3 pts)

Intent: To provide for the ongoing accountability of building energy consumption over time.

OPTION 1:

Develop and implement a measurement and verification (M&V) plan consistent with

Option D: Calibrated

Simulation (Savings Estimation Method 2) as specified in the International Performance

Measurement &

Verification Protocol (IPMVP) Volume III: Concepts and Options for Determining Energy

Savings in New

Construction, April 2003.

The M&V period must cover at least 1 year of post-construction occupancy.






OPTION 2:

Develop and implement a M&V plan consistent with Option B: Energy Conservation

Measure Isolation, as specified in the International Performance Measurement &

Verification Protocol (IPMVP) Volume III: Concepts and Options for Determining Energy

Savings in New Construction, April 2003.

The M&V period must cover at least 1 year of post-construction occupancy.






STRATEGIES:

Develop an M&V plan to evaluate building and/or energy system

performance.

Characterize the building and/or energy systems through energy simulation

or engineering analysis.

Install the necessary metering equipment to measure energy use. Track performance by comparing predicted performance to actual

performance.

Evaluate energy efficiency by comparing actual performance to baseline

performance.





Credit 6: Green Power (2 pts)

Intent: To encourage the

development and use of grid-

source, renewable energy

technologies on a net zeropollution basis.






1. Determine energy consumption.

2. Use the electrical consumption based on the energy model

from EA Credit 1

or

Use the electrical consumption based on the US. Dept of

Energy Commercial Buildings Energy Consumption Survey(CBECS)






3. Investigate options for Green-e Certified Power

a. Purchase from existing provider

b. Purchase renewable power from the open market

c. Purchase Renewable Energy Certificates (RECs)

4. Sign 2 year contract

http://www.green-e.org/energy