Green Globes Multifamily Performance Plus Protocols

Green Globes Multifamily Performance Plus Protocol Guidance helps building teams achieve 25% consumption savings in water or energy for new or existing buildings, and additionally meet minimum ventilation performance requirements for new buildings .

The Performance Plus protocol is intended for either new or existing multifamily projects for which a project team is pursuing financial incentive. This protocol defines and verifies minimum requirements are met at the beginning stages. Included in the Protocol Guidance documents are identification of criteria that are likely to be non-applicable for multifamily projects, thus streamlining the assessment process.

The GBI team is available to offer encouragement, provide clarification and deliver feedback throughout the certification process. We offer step by step instructions for lenders, financial institutions and first time certification teams as well as individualized support to help your team be successful.

Other Multifamily protocols:

Baseline Multifamily protocol guidance with 15% minimum requirements:

New Construction

Existing Building 

Minimum Requirements for Green Globes Multifamily Performance Plus New Construction

Projects must achieve all Minimum Requirements for Ventilation and either Energy or Water. In addition, projects must also achieve a minimum of 35% of the applicable points in the Green Globes Multifamily Performance Plus NC protocol. Minimum Requirements must be met to be eligible for the program but are separate from the criteria in the assessment. Points are awarded for criteria within the Green Globes questionnaire, not for meeting the minimum requirements.

Meet all Ventilation Minimum Requirements, and either Energy or Water Minimum Requirements. 

Ventilation Minimum Requirements:

Building design must establish and meet minimum indoor air quality performance by meeting all three Ventilation Minimum Requirements listed below.

1. Ventilation Air Quality

The quantity of ventilation for the building is compliant with one of the following:

  • Option 1: ANSI/ASHRAE Standard 62.1-2013 Ventilation for Acceptable Indoor Air Quality;

ANSI/ASHRAE 62.1-2013 (read only): https://ashrae.iwrapper.com/ViewOnline/Standard_62.1-2013

  • Option 2 (Lowrise and Midrise Multifamily Only): ANSI/ASHRAE Standard 62.2-2013 Ventilation for Acceptable Indoor Air Quality in Low-Rise Residential Buildings.

ANSI/ASHRAE 62.2-2013 (read only): https://ashrae.iwrapper.com/ViewOnline/Standard_62.2-2013

  • Option 3: ICC International Mechanical Code (ICC IMC 2015), Chapter 4;

ICC International Mechanical Code 2015, Chapter 4: https://codes.iccsafe.org/content/IMC2015/chapter-4-ventilation

  • Option 4: IAPMO UMC (2015) Uniform Mechanical Code;

2015 Uniform Mechanical Code: http://epubs.iapmo.org/UMC/mobile/index.html#p=1

  • Option 5: Local codes or standards (if more stringent).

2. Air Handling Equipment

Equip air handling equipment with filtration as follows:

  • Air handling equipment that provide ventilation air (e.g. central mixed air equipment, make-up air equipment, ventilation equipment for “compartmental” systems such as fan coils or unitary heat pumps): minimum MERV 13; and
  • Terminal equipment that circulates room or zone air (e.g. fan coils, unitary heat pumps): minimum MERV 8.

Not applicable where non-ducted circulating unitary equipment serves only a single zone (e.g. unit heaters, force-flows).

3. Operations & Maintenance Plan

Specify regular ventilation maintenance and indoor air quality (IAQ) in an Operations & Maintenance (O&M) Plan. Ensure that specific issues (e.g. dirty air filters, dirty air return grills, maintenance of mechanical units, etc.) are identified and a regular maintenance plan is developed for maintaining IAQ goals.

ENERGY MINIMUM REQUIREMENTS:

Building design must achieve 25% or greater projected energy consumption savings over respective established baseline and must meet all three (3) Energy Minimum Requirements.

1. Energy Efficient Design

Projects must achieve 25% or greater projected energy consumption savings through one of the following options.

Generate an energy model for the entire building, input energy use and building characteristics into ENERGY STAR Target Finder, and choose one of the following:

  • Option 1: ENERGY STAR® Score - For multifamily properties with 20 or more units. Achieve an ENERGY STAR performance score of 75 or greater in the Target Finder program. See 3.3.1.1.1 for additional guidance.

OR

  • Option 2: EUI Reduction - Demonstrate the proposed design targets a 25% or greater reduction of energy use intensity (EUI) compared to the national median source EUI.

2. Energy Efficient Equipment & Products

Where not already covered by Energy Efficient Design, install ENERGY STAR-labeled, FEMP-designated, and/or AHAM Verifide energy efficient products and appliances (including clothes washers, dishwashers, and refrigerators), if such products and/or appliances are being provided.

ENERGY STAR Qualified Product Lists: http://www.energystar.gov

Federal Energy Management Program (FEMP) Energy and Water Efficient Products: http://www1.eere.energy.gov/femp

AHAM Verifide: http://ahamverifide.org/search-for-products/

3. Energy Performance Monitoring & Tracking

Confirm that the local utility or on-site master energy meter(s) provide, at a minimum, aggregated whole-project energy consumption data for each energy utility type. Where local utility or current meters do not provide such data install energy meters that do.

Commit to entering energy consumption data into ENERGY STAR Portfolio Manager to track ongoing performance and sharing of that data with Green Building Initiative. Document for future performance verification.

WATER MINIMUM REQUIREMENTS:

Building must achieve 25% or greater projected water consumption savings over respective established baseline and must meet both Water Minimum Requirements.

1. Water Consumption Savings

Choose either the Prescriptive Path or the Performance Path:

1.A Prescriptive Path – Low Flow Fixtures and Fittings

Projects following the Prescriptive Path for Water Consumption Savings must install low flow fixtures and fittings that meet or are lower than the following volume ratings:

  1. Water closets (toilets) – 1.28 gpf or dual flush (1.0-1.6 gpf)
  2. Urinals – 0.125 gpf
  3. Private lavatory faucets – 0.5 gpm
  4. Public lavatory faucets – 0.5 gpm
  5. Kitchen faucets – 1.5 gpm
  6. Showerheads – 1.75 gpm
  7. Clothes washers – 4.0 Water Factor (WF/IWF)
  8. Dishwasher – 5 Gal. per cycle

1.B Performance Path – EPA 1-100 Water Score

Projects following the Performance Path for Water Consumption Savings must achieve 25% or greater projected water consumption savings by achieving a water score of 75 or greater using EPA’s 1-100 Water Score for Multifamily Buildings within Portfolio Manager.

Portfolio Manager Technical Reference – EPA Water Score for Multifamily Housing in the United States:

2. Water Performance Monitoring & Tracking

Confirm that the local utility or on-site master water meter(s) provide, at a minimum, aggregated whole-project water consumption data. Where local utility or current meters do not provide such data install water meters that do.

Commit to entering water consumption data into ENERGY STAR Portfolio Manager to track ongoing performance and sharing of that data with Green Building Initiative. Document for future performance verification.

Minimum Requirements for Green Globes Multifamily Performance Plus Existing Buildings

To be certified through Green Globes Multifamily Performance Plus for Existing Buildings, projects must achieve all Minimum Requirements for either Energy or Water. In addition, projects must also achieve a minimum of 35% of the applicable points in the Green Globes Multifamily EB protocol. Minimum Requirements must be met to be eligible for the program but are separate from the criteria in the assessment. Points are awarded for criteria within the Green Globes questionnaire, not for meeting the minimum requirements.

Select either Energy or Water Minimum Requirements.

ENERGY MINIMUM REQUIREMENTS:

Demonstrate 25% or greater energy consumption savings over respective established baseline and meet all three (3) Energy Minimum Requirements.

1. Energy Performance

Choose either the ENERGY STAR® Portfolio Manager Path or the Energy Consumption Savings Path and document the energy savings.

1.A ENERGY STAR® Portfolio Manager Path

Projects following the ENERGY STAR® Portfolio Manager Path must choose one of the following two options:

Option 1: ENERGY STAR® Score

For multifamily properties with 20 or more units. Achieve an ENERGY STAR energy performance score of 75 or greater using the Portfolio Manager program.

Option 2: EUI Reduction

Demonstrate 25% reduction of energy use intensity (EUI) compared to the national median source EUI.

1.B Energy Consumption Savings Path

Demonstrate 25% or greater energy consumption savings over respective established baseline. Compare whole building energy data from previous 12 months against 3 contiguous years of energy consumption use within the previous 9 years (normalized for climate and occupancy). All data must be input into ENERGY STAR Portfolio Manager.

2. Energy Efficient Equipment & Products

Confirm Operations & Maintenance (O&M) policy to install ENERGY STAR-labeled, FEMP-designated, and/or AHAM Verifide energy efficient products and appliances (including clothes washers, dishwashers, and refrigerators), when such products and/or appliances are being replaced.

ENERGY STAR Qualified Product Lists: http://www.energystar.gov

Federal Energy Management Program (FEMP) Energy and Water Efficient Products: http://www1.eere.energy.gov/femp

AHAM Verified: http://ahamverifide.org/search-for-products/

3. Energy Performance Monitoring & Tracking

Confirm that the local utility or on-site master energy meter(s) provide, at a minimum, aggregated whole-property energy consumption data for each energy utility type. Where local utility or current meters do not provide such data install energy meters that do.

Commit to entering energy consumption data into ENERGY STAR Portfolio Manager to track ongoing performance and sharing of that data with Green Building Initiative. Document for future performance verification.

WATER MINIMUM REQUIREMENTS:

Demonstrate 25% or greater water consumption savings over respective established baseline and meet both Water Minimum Requirements.

1. Water Consumption Savings

Choose either the Performance Path or the Prescriptive Path.

1.A Prescriptive Path – Low Flow Fixtures, Fittings, and Appliances

Projects following the Prescriptive Path for Water Consumption Savings must replace water fixtures and fittings with low flow fixtures and fittings that meet or are lower than the following volume ratings:

  1. Water closets (toilets) – 1.28 gpf or dual flush (1.0-1.6 gpf)
  2. Urinals – 0.125 gpf
  3. Private lavatory faucets – 0.5 gpm
  4. Public lavatory faucets – 0.5 gpm
  5. Kitchen faucets – 1.5 gpm
  6. Showerheads – 1.75 gpm
  7. Clothes washers – 4.0 Water Factor (WF/IWF)
  8. Dishwashers – 5 Gal. per use

1.B Performance Path – EPA 1-100 Water Score

Projects following the Performance Path for Water Consumption Savings must achieve 25% or greater water consumption savings by achieving a water score of 75 or greater using EPA’s 1-100 Water Score for Multifamily Buildings within Portfolio Manager.

Portfolio Manager Technical Reference – EPA Water Score for Multifamily Housing in the United States:

2. Water Performance Monitoring & Tracking

Confirm that the local utility or on-site master water meter(s) provide, at a minimum, aggregated whole-project water consumption data. Where local utility or current meters do not provide such data install water meters that do.

Commit to entering water consumption data into ENERGY STAR Portfolio Manager to track ongoing performance and sharing of that data with Green Building Initiative. Document for future performance verification.

*Note on Whole Building Energy Consumption Data - If you don’t currently have 12 months of energy data to use as your baseline, you can still use Green Globes to establish your baseline, receive upgrade recommendations from the final assessment process, and then use the Green Globes Multifamily EB tool again 12 months after improvements are made to show your savings.

Exception Policy - GBI reserves the right to issue ventilation, energy, and/or water exceptions on a case-by-case basis as needed for unique circumstances, e.g., function of the building requires a limited amount of high flow fixtures. Multifamily projects must still meet the 25% or greater energy or water consumption savings requirement.