Whitelist for Low-carbon Buildings technologies
This Whitelist for green building technologies refers to a curated list of approved and/or recommended technologies that areconsidered suitably; energy efficient, low-carbon, and/or sustainable, technology options for use in building construction,renovation, and operation. These technologies are selected based on their environmental performance, energy efficiency, and otherrelevant criteria aligned with the current version of the Climate Bonds buildings criteria intended to achieve a decarbonised building
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Listed below are the approved technological interventions that are included as green technologies and in line with the ClimateBonds Buildings criteria and certification programme (this list will be updated periodically as new technologies are assed andapproved):

Whitelist of approved technologies
1

Energy-Efficient HVAC Systems:

2

2LED Lighting:2

3

Renewable Energy Systems:

2

4

Building Envelope Technologies:2

5Low-Emissivity coatings

2

6

Double and Triple Glazed windows:

2

7

Advanced Building Automation and Controls:

3

8

Water Efficiency Technologies:

3

9Sustainable Materials:

3

10Energy Storage Solutions:

3

11Indoor Air Quality Technologies:

312Smart Building Technologies:

3NOTE:

This whitelist can be used to support certification of Use-of-Proceeds Instruments and Assets, andalso in some circumstances, Sustainability-Linked Debt Instruments and Entities per the ClimateBonds Standard v4.0

Revision
Rev. 1.0

Date
07 December 2023

Summary of Changes
Published for issue

First Floor, 10 Queen Street Place, London, EC4R 1BE United Kingdom
The Climate Bonds Initiative is a not-for-profit company registered in the United Kingdom.
Companies House number 7455730

www.climatebonds.net

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Energy-Efficient HVAC Systems:•••

2LED Lighting:••3

Solar photovoltaic (PV) panels for on-site electricity generation.
Wind turbines for localized power generation in suitable areas.
Geothermal heat pumps for efficient heating and cooling.

Building Envelope Technologies:•••

5

Energy-efficient LED lighting with advanced controls for occupancy and daylight sensing.
Smart lighting systems that can be integrated with building automation.

Renewable Energy Systems:•••

4

Variable Refrigerant Flow (VRF) systems.
High-efficiency heat pumps and air conditioners.
Advanced control systems for optimizing heating, cooling, and ventilation.

High-performance insulation materials.
Energy-efficient windows with low-E coatings.
Cool roofing materials to reduce heat absorption.

Low-Emissivity coatings

Low-E (low-emissivity) coatings are microscopically thin, virtually invisible metallic layers applied to the surface of windows andother glazing materials, such as glass. These coatings are designed to improve the energy efficiency of buildings by reducing thetransfer of heat and solar radiation through the glass while still allowing visible light to pass through. Low-E coatings are commonlyused in energy-efficient windows and are an integral part of modern glazing technology.
The key functions of low-E coatings are as follows:•Solar Heat Control: Low-E coatings can selectively reflect and absorb solar heat, reducing the amount of heat that entersa building during hot, sunny days. This helps in preventing overheating and the need for excessive air conditioning.

•Winter Heat Retention: In colder seasons, low-E coatings help to reflect the heat generated inside the building back into
the interior, reducing heat loss through the windows and making the space more energy-efficient.

•Visible Light Transmission: Low-E coatings are designed to maintain a high level of visible light transmission, ensuring thatnatural daylight can enter the building, which is essential for aesthetics, comfort, and reducing the need for artificial
lighting.

•UV Radiation Blocking: Low-E coatings can block a significant portion of ultraviolet (UV) radiation, which can cause fading
and damage to furnishings, artwork, and interior materials.

Low-E coatings are available in different variations, including "soft" and "hard" coatings, and can be applied to different types ofglazing, such as single-pane, double-pane, and triple-pane windows. They are often combined with other energy-efficient features,such as gas fills (e.g., argon or krypton) in the window's insulating space between the panes, to further enhance thermal
performance.

6

Double and Triple Glazed windows:

The efficiency of double- and triple-glazed windows is most impactful in regions with colder winters (temperate climates). The
construction and installation of double- or triple-glazed windows should include considerations such as climate, energy efficiency
goals:

Climate Bonds Initiative - Sector Criteria - Whitelist For Low-Carbon Buildings Technologies V1.0 (December 2023)

Page | 2•Double-glazed windows consist of two glass panes separated by a layer of inert gas like argon or krypton. This design
reduces heat transfer through the window compared to single-pane windows, offering better insulation for your home.
Selection between double- or triple-glazing must consider factors such as local climate range, budget and energy efficiency
performance goals.

7•

Minimum u-values (efficiency rating) of products should meet those stated in the ASHRAE standard, or any suitable incountry (published) regulation.

•Triple glazing windows (like double glazed windows, offer additional benefits due to an extra layer of glass and an additionalairspace) are particularly effective in cold climates with harsh winters. They provide superior insulation and reduce heatloss, helping to keep indoor spaces warmer and more comfortable.

•In extremely cold climates, where heating costs are a significant concern, triple glazing provides improved thermal
performance helps lower heating expenses.

Advanced Building Automation and Controls:•••

8

Water Efficiency Technologies:•••

9Building Energy Management Systems (BEMS) for real-time monitoring and control.
Smart thermostats and sensors for energy optimization.
Predictive maintenance systems for reducing energy waste.

Low-flow faucets and fixtures.
Water-efficient irrigation systems.
Greywater recycling systems.

Sustainable Materials:•••

Use of sustainable and recycled construction materials.
Low-VOC (volatile organic compounds) paints and finishes.
Environmentally friendly insulation materials.

10 Energy Storage Solutions:••

Battery energy storage systems for storing excess energy generated from renewables.
Thermal energy storage for heating and cooling applications.

11 Indoor Air Quality Technologies:•••

Advanced air filtration systems.
Demand-controlled ventilation for improved air quality.
Monitoring systems for detecting indoor air pollutants.

12 Smart Building Technologies:•••

Internet of Things (IoT) devices for data collection and analysis.
Integration of Artificial Intelligence (AI) for optimizing building operations.
Occupancy and space utilization tracking for efficient use of resources.

Climate Bonds Initiative - Sector Criteria - Whitelist For Low-Carbon Buildings Technologies V1.0 (December 2023)

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