"The following commissioning process activities must be completed by the project team:

• Designate an individual as the commissioning authority (CxA) to lead, review and oversee the completion of the commissioning process activities.
  * The CXA must have documented commissioning authority experience in at least 2 building projects.
  * The individual serving as the CxA must be independent of the project's design and construction management, though the CxA may be an employee of any firms providing those services. The CxA may be a qualified employee or consultant of the owner.
  * The CxA must report results, findings and recommendations directly to the owner.
  * For projects smaller than 50,000 gross square feet, the CxA may be a qualified person on the design or construction teams who has the required experience.
  
• The owner must document the owner's project requirements. The design team must develop the basis of design. The CxA must review these documents for clarity and completeness. The owner and design team must be responsible for updates to their respective documents.
• Develop and incorporate commissioning requirements into the construction documents.
• Develop and implement a commissioning plan.
• Verify the installation and performance of the systems to be commissioned.
• Complete a summary commissioning report.

Commissioned Systems
Commissioning process activities must be completed for the following energy-related systems at a minimum:

• Heating, ventilating, air conditioning and refrigeration (HVAC&R) systems (mechanical and passive) and associated controls.
• Lighting and daylighting controls
• Domestic hot water systems.
• Renewable energy systems (e.g. PV, wind, solar)."

- LEED 2009 for Commercial Interiors Rating System, page 26

"The following commissioning process activities shall be completed by the commissioning team:

• Designate an individual as the Commissioning Authority to lead the commissioning process activities.
• This individual should not be directly responsible for project design or construction management.
• Clearly document the owner’s project requirements and the basis of design for the building’s energy related systems. Updates to these documents shall be made during design and construction by the design team.
• Develop and incorporate commissioning requirements into the construction documents.
• Develop and utilize a commissioning plan.
• Verify that the installation and performance of energy consuming systems meet the owner’s project requirements and basis of design.
• Complete a commissioning report.

Commissioned Systems:
The energy-related systems to be included in the commissioning process activities include as a minimum:

• Heating, ventilating, air conditioning and refrigeration (HVAC&R) systems (mechanical and passive) and associated controls
• Lighting controls, including day lighting
• Domestic hot water systems
• Renewable energy systems (PV, wind, solar, etc.)."

- LEED-CI Version 2.0 Reference Guide, page 117

• "Update the commissioning plan at milestones throughout the project. This should happen, at a minimum, during the design development phase, the construction documents phase, and just prior to the kick-off meeting with the general contractor.
• Prepare a systems list that indicates which systems have been included within the scope of enhanced commissioning.
• Obtain confirmation that the commissioning authority has documented experience on at least 2 building projects.
• Retain copies of the owner's project requirements, basis of design, commissioning specifications, commissioning report, and systems manual."

- LEED-CI Version 3 Reference Guide, page 131

(Complete descriptions of documentation requirements are on LEED-Online)

• "Provide the LEED-CI Letter Template, signed by the commissioning authority and tenant, confirming that the commissioning requirements for the project's energy related systems have been successfully executed or will be provided under existing contract(s).
• Provide a narrative and diagrams indicating how the HVAC system works, what portions are shared with other tenants in the building, what was included in the project scope of work, and if improvements were made in conjunction with the project by others to any common building systems supplying the tenant area."

- LEED-CI Version 2.1 Reference Guide, page 117

Design portions of the building as covered by the tenant's scope of work to comply with ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹), and complete the following:

• Comply with the mandatory provisions (Sections 5.4, 6.4, 7.4, 8.4, 9.4 and 10.4) of ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹).
• Achieve the prescriptive requirements (Sections 5.5,6.5, 7.5 and 9.5) or performance requirements (Section 11) of ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹).
• Reduce connected lighting power density 10% below that allowed by ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹) using either the Space-by-Space Method or by applying the whole building lighting power allowance to the entire tenant space.<
• Install ENERGY STAR qualified equipment for 50% (by rated-power) of ENERGY STAR eligible equipment² installed as part of the tenant's scope of work. This requirement includes appliances, office equipment, electronics, and commercial food service equipment. Excluded are heating, ventilating and air conditioning (HVAC), lighting, and building envelope products.

Projects in California may use Title 24-2005, Part 6 in place of ANSI/ASHRAE/IESNA Standard 90.1-2007.

¹Project teams wishing to use ASHRAE approved addenda for the purposes of this credit may do so at their discretion. Addenda must be applied consistently across all LEED credits.

- LEED 2009 for Commercial Interiors Rating System, page 15

"Design portions of the building as covered by the tenant’s scope of work to comply with ASHRAE/IESNA Standard 90.1-2004 or the local energy code, whichever is more stringent."

- LEED-CI Version 2.0 Reference Guide, page 131

• "For ASHRAE compliance, list any addenda used, and retain copies of ASHRAE compliance forms.
• If the project is using the prescriptive compliance path, assemble documentation demonstrating that the project meets all applicable requirements.
• For lighting power density reduction, refer to the Documentation Guidance section in EA Credit 1.1.
• For ENERGY STAR equipment, refer to the Documentation Guidance section in EA Credit 1.4."

- LEED-CI Version 3 Reference Guide, page 142

(Complete descriptions of documentation requirements are on LEED-Online)

• "Provide the LEED-CI Letter Template, signed by the licensed professional engineer, architect or other responsible party, stating that the tenant space complies with ASHRAE/IESNA 90.1-2004 or local energy codes, whichever is more stringent. If local energy codes were applied, demonstrate that the local energy code is more stringent than ASHRAE/IESNA 90.1-2004.

California Title 24 2001 has been deemed to be more stringent than ASHRAE 90.1-2004 for LEED purposes. No demonstration of equivalency is required for project teams implementing Title 24 2001."

- LEED-CI Version 2.0 Reference Guide, page 131

"Zero use of chlorofluorocarbon (CFC)-based refrigerants in tenant heating, ventilating, air conditioning and refrigeration (HVAC&R) systems used within the LEED project scope of work."

- LEED 2009 for Commercial Interiors Rating System, page 16

"Zero use of CFC-based refrigerants in tenant HVAC&R systems within the LEED-CI project scope of work."

- LEED-CI Version 2.0 Reference Guide, page 139

• "Assemble manufacturers' documentation demonstrating the type of refrigerant used by the HVAC&R systems installed within the scope of the LEED project."

- LEED-CI Version 3 Reference Guide, page 149

(Complete descriptions of documentation requirements are on LEED-Online)

"Provide the LEED-CI Letter Template, signed by a professional engineer or other responsible party, declaring that there are no CFCs in HVAC&R systems that have been installed or renovated within the LEED-CI project scope."

- LEED-CI Version 2.0 Reference Guide, page 139

"Reduce connected lighting power density below that allowed by ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹) using either the space-by-space method or by applying the whole building lighting power allowance to the entire tenant space.

The points earned for reducing lighting power density below the standard are as follows:

Lighting Power Density Reduction below the Standard	Points
15%	1
20%	2
25%	3
30%	4
35%	5

Project teams in California may use Title 24-2005, Part 6 in place of ANSI/ASHRAE/IESNA Standard 90.1-2007.

¹Project teams wishing to use ASHRAE approved addenda for the purposes of this prerequisite may do so at their discretion. Addenda must be applied consistently across all LEED credits."

- LEED 2009 for Commercial Interiors Rating System, page 17

*All projects registered after June 26, 2007 must achieve at least two EAc1 credits.  These can be earned in any of the four sub-categories (EAc1.1, EAc1.2, EAc1.3, EAc1.4).  This will improve the energy performance of all LEED certified green buildings by 14% for new construction and 7% for existing buildings.*

"Reduce connected lighting power density below that allowed by ASHRAE/IESNA Standard 90.1-2001 (with all addenda)* using either the space-by-space method or by applying the whole building lighting power allowance to the entire tenant space.

Option A. Reduce lighting power density to 15% below the standard (1 point)

OR

Option B. Reduce lighting power density to 25% below the standard, (2 points)

OR

Option C. Reduce lighting power density to 35% below the standard. (3 points)

*ASHRAE/IESNA 90.1-2004 will become the referenced standard once available."

- LEED-CI Version 2.0 Reference Guide page 143

• "For ASHRAE compliance, list any addenda used.
• Assemble lighting compliance documents from the ASHRAE 90.1-2007 user's manual.
• List the rated power of installed lighting systems.
• List building area types or space area types with their corresponding gross floor areas.
• Assemble information about additional lighting power allowances and document that the allowances apply only to lighting systems that are separate from general lighting."

- LEED-CI Version 3 Reference Guide, page 157

(Complete descriptions of documentation requirements are on LEED-Online)

• "Provide the LEED-CI Letter Template, signed by the professional engineer or other responsible party, stating that the lighting power density is reduced below ASHRAE requirements consistent with the level of credit being sought. AND
• Complete the Lighting Compliance Documentation provided in the ASHRAE/IESNA Standard 90.1 User’s Manual. Provide a separate calculation that shows the percentage reduction in lighting power."

- LEED-CI Version 2.0 Reference Guide page 145

"Design the project to include 1 or more of the following independent strategies:

• Daylight controls for daylit areas: (1 point)
  Install daylight responsive controls in all regularly occupied daylit spaces within 15 feet of windows and under skylights. Daylight controls must switch or dim electric lights in response to the presence or absence of daylight illumination in the space.¹
• Daylight controls for 50% of the lighting load: (1 point)
  Install daylight responsive controls for 50% or more of the connected lighting load and demonstrate that 50% of the connected lighting load is daylight responsive. Daylight controls must switch or dim electric lights in response to the presence or absence of daylight illumination in the space.²
• Occupancy sensors: (1 point)
  Install occupancy sensors for 75% of the connected lighting load.

¹ American Society of Heating, Refrigerating, and Air-Condltioning Engineers. ANSI/ASHRAE/IESNA Standard 90.1 - 2007 90.1 User's Manual. (Atlanta, 2008). P.9-3
2 Ibid"

- LEED 2009 for Commercial Interiors Rating System, page 18

*All projects registered after 6/26/07 must achieve at least two EAc1 credits.  These can be earned in any of the four sub-categories (EAc1.1, EAc1.2, EAc1.3, EAc1.4).  This will improve the energy performance of all LEED certified green buildings by 14% for new construction and 7% for existing buildings.*

"Install daylight responsive controls in all regularly occupied spaces within 15 feet of windows and under skylights."

- LEED-CI Version 2.0 Reference Guide page 149

• "Highlight daylit zones on interior lighting plans; indicate which luminaries correspond to each controller."

- LEED-CI Version 3 Reference Guide, page 162

(Complete descriptions of documentation requirements are on LEED-Online)

• "Provide the LEED-CI Letter Template, signed by the professional engineer or other responsible party, stating that lighting controls were installed consistent with the credit requirement. AND
• Provide a narrative describing the lighting controls that have been incorporated in the tenant space design. Include a plan of lighting control zones showing each control device and lighting equipment controlled. Provide a schedule of lighting controls showing model, type and other characteristics."

- LEED-CI Version 2.0 Reference Guide page 149

"OPTION 1
Implement 1 or both of the following strategies:

• Equipment Efficiency --(5 points)
  Install heating, ventilation and air conditioning (HVAC) systems that comply with the efficiency requirements outlined in the New Building Institute's Advanced Buildings Core Performance Guide Sections 1.4: Mechanical System Design, 2.9: Mechanical Equipment Efficiency and 3.10: Variable Speed Control.
• Appropriate Zoning and Controls: (5 points)
  Zone tenant fit out spaces to meet the following requirements:
  * Every solar exposure must have a separate control zone.
  * Interior spaces must be separately zoned.
  * Private offices and special occupancies (conference rooms, kitchens, etc.) must have active controls capable of sensing space use and modulating the HVAC system in response to space demand.

OR

OPTION 2
Reduce design energy cost compared with the energy cost budget for regulated energy components described in the requirements of ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹)

AND

PATH 1 (5 points)

Demonstrate that HVAC system component performance criteria used for tenant space are 15% better than a system in minimum compliance with ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹).

OR

PATH 2 (10 points)

Demonstrate that HVAC system component performance criteria used for tenant space are 30% better than a system in minimum compliance with ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹).

¹ Project teams wishing to use ASHRAE approved addenda for the purposes of this credit may do so at their discretion. Addenda must be applied consistently across all LEED credits."

- LEED 2009 for Commercial Interiors Rating System, page 19

*All projects registered after 6/26/07 must achieve at least two EAc1 credits.  These can be earned in any of the four sub-categories (EAc1.1, EAc1.2, EAc1.3, EAc1.4).  This will improve the energy performance of all LEED certified green buildings by 14% for new construction and 7% for existing buildings.*

"OPTION A

Implement one or both of the following strategies:

• Equipment Efficiency: (1 point)

Install HVAC systems which comply with the efficiency requirements outlined in the New Buildings Institute, Inc.’s publication “Advanced Buildings: Energy Benchmark for High Performance Buildings (E-Benchmark)” prescriptive criteria for mechanical equipment efficiency requirements, sections 2.4 (less ASHRAE standard 55), 2.5, and 2.6.

• Appropriate Zoning and Controls: (1 point)

Zone tenant fit out of spaces to meet the following requirements:
* Every Solar Exposure must have a separate control zone
* Interior spaces must be separately zoned
* Private offices and specialty occupancies (conference rooms, kitchens, etc.) must have active controls capable of sensing space use and modulating HVAC system in response to space demand

OPTION B

Reduce design energy cost compared to the energy cost budget for regulated energy components described in the requirements of ASHRAE/IESNA Standard 90.1- 2001 (with all addenda)*.

• Demonstrate that HVAC system component performance criteria used for tenant space are 15% better than a system that is in minimum compliance with ASHRAE/IESNA Standard 90.1-2001 (with all addenda)*. (1 point) OR
• Demonstrate that HVAC system component performance criteria used for tenant space are 30% better than a system that is in minimum compliance with ASHRAE/IESNA Standard 90.1-2001 (with all addenda)*. (2 points)

*ASHRAE/IESNA 90.1-2004 will become the referenced standard once available."

- LEED-CI Version 2.0 Reference Guide, page 152

• "List locations and functions of HVAC system automatic controls or sensors.
• Document potential energy savings per control and rasons for zone distribution.
• For cost-budget compliance, list the proposed design energy by end use, associated peak demand, and cost. Additionally, list baseline costs by energy type."

- LEED-CI Version 3 Reference Guide, page 172

(Complete descriptions of documentation requirements are on LEED-Online)

• "Provide the LEED-CI Letter Template, signed by the licensed professional engineer or architect, stating that the HVAC system energy consumption is 15% or 30% (depending on credit taken) lower than a base case system defined in ASHRAE/IESNA Standard 90.1-2001, Section 11. (ASHRAE/IESNA 90.1-2004 will become the referenced standard once available.)
• Provide a completed copy of the Energy Cost Budget (ECB) Compliance Form. Provide a narrative description of the HVAC system serving the tenant space as well as a description of the building-level system. Plans and specifications should have an HVAC equipment schedule and plans showing the equipment within the space."

- LEED-CI Version 2.0 Reference Guide, page 152

"OPTION 1
Implement 1 or both of the following strategies:

• Equipment Efficiency --(5 points)
  Install heating, ventilation and air conditioning (HVAC) systems that comply with the efficiency requirements outlined in the New Building Institute's Advanced Buildings Core Performance Guide Sections 1.4: Mechanical System Design, 2.9: Mechanical Equipment Efficiency and 3.10:Variable Speed Control.
• Appropriate Zoning and Controls: (5 points)
  Zone tenant fit out of spaces to meet the following requirements:
  * Every solar exposure must have a separate control zone.
  * Interior spaces must be separately zoned.
  * Private offices and special occupancies (conference rooms, kitchens, etc.) must have active controls capable of sensing space use and modulating the HVAC system in response to space demand.

OR

OPTION 2
Reduce design energy cost compared with the energy cost budget for regulated energy components described in the requirements of ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹)

AND

PATH 1 (5 points)

Demonstrate that HVAC system component performance criteria used for tenant space are 15% better than a system in minimum compliance with ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹).

OR

PATH 2 (10 points)

Demonstrate that HVAC system component performance criteria used for tenant space are 30% better than a system that is in minimum compliance with ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda¹).

¹Project teams wishing to use ASHRAE approved addenda for the purposes of this credit may do so at their discretion. Addenda must be applied consistently across all LEED credits."

- LEED 2009 for Commercial Interiors Rating System, page 19

*All projects registered after 6/26/07 must achieve at lest two EAc1 credits.  These can be earned in any of the four sub-categories (EAc1.1, EAc1.2, EAc1.3, EAc1.4).  This will improve the energy performance of all LEED certified green buildings by 14% for new construction and 7% for existing buildings.*

"For all ENERGYSTAR-eligible equipment and appliances installed in the project, including appliances, office equipment, electronics, and commercial food service equipment (but excluding HVAC, lighting, and building envelope products):

• 70%, by rated-power, of ENERGYSTAR-eligible equipment and appliances shall be ENERGYSTAR-rated (1 point); OR
• 90%, by rated-power, of ENERGYSTAR-eligible equipment and appliances shall be ENERGYSTAR-rated (2 points)."

- LEED-CI Version 2.0 Reference Guide, page 168

• "List locations and functions of HVAC system automatic controls or sensors.
• Document potential energy savings per control and reasons for zone distribution.
• For cost-budget compliance, list the proposed design energy by end use, associated peak demand, and cost. Additionally, list baseline cost by energy type."

- LEED-CI Version 3 Reference Guide, page 172

(Complete descriptions of documentation requirements are on LEED-Online)

• "Provide the LEED-CI Letter Template, signed by the responsible party, declaring that ENERGYSTAR-eligible equipment and appliances are ENERGYSTAR-rated and yield the indicated percentage of the total, determined by rated-power.
• Provide a narrative describing the equipment and appliances that will be installed in the project. Complete the schedule of equipment listing the types and quantity of equipment and appliances to be installed in the project along with the rated-power (or rated fuel input for commercial cooking equipment) of each type of EnergyStar eligible equipment and appliance. Indicate which equipment and appliances are ENERGYSTAR-rated. Indicate the overall percentage of equipment and appliances, based on rated electrical power (as well as rated fuel input for commercial cooking equipment), that is ENERGYSTAR-rated."

- LEED-CI Version 2.0 Reference Guide, page 168

"For all ENERGY STAR qualified equipment and appliances installed as part of the tenant's scope ofwork, achieve one of the following percentages (by rated power):

Percent Installed ENERGY STAR Qualified Equipment of ENERGY STAR Eligible Equipment	Points
70%	1
77%	2
84%	3
90%	4

This requirement applies to appliances, office equipment, electronics, and commercial food service equipment. Excluded are HVAC, lighting, and building envelope products."

- LEED 2009 for Commercial Interiors Rating System, page 21

"In addition to the Fundamental Commissioning prerequisite, implement or have a contract in place to implement the following additional commissioning process activities:
1. Designate an individual as the Commissioning Authority, independent of the firms represented on the design and construction team, to lead the commissioning design review activities prior to the end of Design Development.
2. Conduct a review of the tenant space’s energy-related systems contractor submittals.
3. Develop a single manual that contains the information required for re-commissioning the tenant space’s energy related systems.
4. Verify that the requirements for training operating personnel and tenant space occupants are completed. Have a contract in place to review tenant space operation with O&M staff and occupants including a plan for resolution of outstanding commissioning-related issues 8 to 10 months after final acceptance."

- LEED-CI Version 2.0 Reference Guide, page 173

• "Update the commissioning plan at milestones throughout the project. This should happen, at a minimum, during the design development phase, the construction documents phase, and just prior to the kick-off meeting with the general contractor.
• Prepare a systems list that indicates which systems have been included within the scope of enhanced commissioning.
• Request confirmation that the commissioning authority has documented experience on at least 2 building projects.
• Create a written schedule of building operator training.
• Retain a copy of the commissioning authority's design review, any designer responses to this review, and confirmation of the back-check.
• Retain copies of the owner's project requirements, basis of design, commissioning specifications, commissioning report, and systems manual."

- LEED-CI Version 3 Reference Guide, page 185

(Complete descriptions of documentation requirements are on LEED-Online)

• "Provide the LEED-CI Letter Template, signed by the owner and independent Commissioning Authority, confirming that the required enhanced commissioning process requirements 1 and 2 have been successfully executed and that a contract for completing requirements 3 and 4 is in place."

- LEED-CI Version 2.0 Reference Guide, page 173

"CASE 1. Projects Less than 75% of the Total Building Area
Complete 1 or more of the following:

• Install submetering equipment to measure and record energy use within the tenant space. (2 points)
• Negotiate a lease whereby energy costs are paid by the tenant and not included in the base rent. (3 points)

OR

CASE 2. Projects 75% of More of the Total Building Area
Install continuous metering equipment for the following end uses: (5 points)

• Lighting systems and controls.
• Constant and variable motor loads.
• Variable frequency drive operation.
• Chiller efficiency at variable loads (kW/ton).
• Cooling load.
• Air and water economizer and heat recovery cycles.
• Air distribution static pressures and ventilation air volumes.
• Boiler efficiencies.
• Building-related process energy systems and equipment.
• Indoor water riser and outdoor irrigation systems.

Develop and implement a measurement and verification (M&V) plan that incorporates the monitoring information from the above end uses and is consistent with Option B, C or D ofthe 2001 International Performance Measurement & Verification Protocol (IPMVP) Volume I: Concepts and Options for Determining Energy and Water Savings.

Provide a process for corrective action if the results of the M&V plan indicate that energy savings are not being achieved."

- LEED 2009 for Commercial Interiors Rating System, page 24-25

"CASE A: For those projects with an area that constitute less than 75% of the total building area:

• Install sub-metering equipment to measure and record energy uses within the tenant space. (1 point.)
• Negotiate a lease where energy costs are paid by the tenant and not included in the base rent. (1 point)

OR

CASE B: For those projects with an area that constitutes 75% or more of the total building area, install continuous metering equipment for the following end-uses: (2 points)

• Lighting systems and controls
• Constant and variable motor loads
• Variable frequency drive (VFD) operation
• Chiller efficiency at variable loads (kW/ton)
• Cooling load
• Air and water economizer and heat recovery cycles
• Air distribution static pressures and ventilation air volumes
• Boiler efficiencies
• Building-related process energy systems and equipment
• Indoor water riser and outdoor irrigation systems

Develop a Measurement & Verification plan that incorporates the monitoring information from the above end-uses and is consistent with Option B, C or D of the 2001 International Performance Measurement & Verification Protocol (IPMVP) Volume I: Concepts and Options for Determining Energy and Water Savings."

- LEED-CI Version 2.0 Reference Guide, page 175

• "Develop an IPMVP-compliant measurement and verification plan, conforming to Option B, C, or D.
• For projects with an area less than 75% of the total building area, assemble documentation (e.g., lease agreements, utility bills) demonstrating that the tenant energy costs are paid by the tenant.
• Summarize the installed monitoring systems in the tenant space, demonstrating that, at a minimum, the required systems are monitored."

- LEED-CI Version 3 Reference Guide, page 193-194

(Complete descriptions of documentation requirements are on LEED-Online)

• "For projects with an area that constitutes less than 75% of the total building area, provide the LEED-CI Letter Template, signed by a licensed engineer or other responsible party, describing the metering equipment installed for each end use, and/or indicating that energy costs are paid by the tenant and not included in the base rent, which must be confirmed by providing a copy of the applicable portion of the lease.

OR

• For projects with an area that constitutes 75% or more of the total building area, provide the LEED-CI Letter Template, signed by a licensed engineer or other responsible party, indicating that metering equipment has been installed for each end-use and declaring the option to be followed under IPMVP, 2001 version, plus provide a copy of the M&V plan following IPMVP, 2001 version, including an executive summary."

- LEED-CI Version 2.0 Reference Guide, page 175

"OPTION 1
Engage in at least a 2-year renewable energy contract to provide at least 50% of the tenant's electricity from renewable sources, as defined by the Center for Resource Solutions' Green-e energy product certification requirements.

All purchases of green power must be based on the quantity of energy consumed, not the cost, as determined by the annual electricity consumption results of EACredit 1, Optimize Energy Performance.

OR

OPTION 2
Engage in at least a 2-year renewable energy contract to purchase at least 8 kilowatt hours per square foot per year from renewable electricity sources as defined by the Center for Resource Solutions (CRS) Green-e Energy's product certification requirements.

All purchases of green power must be based on the quantity of energy consumed, not the cost."

- LEED 2009 for Commercial Interiors Rating System, page 26

"Provide at least 50% of the tenant’s electricity from renewable sources by engaging in at least a two-year renewable energy contract. Renewable sources are as defined by the Center for Resource Solutions (CRS) Green-e products certification requirements. Green power may be procured from a Green-e certified power marketer, a Green-e accredited utility program, or through Green-e Tradable Renewable Certificates, or from a supply that meets the Green-e Renewable Power definition."

- LEED-CI Version 2.0 Reference Guide, page 185

• "Maintain contractual documentation of the purchase of Green-e (or equivalent) certified renewable energy.
• If the certified renewable energy is purchased for the project by others, maintain documentation indicating that the renewable energy was retained on behalf of the project."

- LEED-CI Version 3 Reference Guide, page 201

(Complete descriptions of documentation requirements are on LEED-Online)

"Provide the LEED-CI Letter Template, signed by the owner or other responsible party, documenting that the supplied power is equal to 50% of the project’s energy consumption and the sources meet the Green-e definition of renewable energy. Provide a copy of the two-year electric utility purchase contract for power generated from renewable sources."

- LEED-CI Version 2.0 Reference Guide, page 185