Energy Efficiency Stocks in the Climate Index

From LEDs, to HVAC automation, to dynamic glass, to high efficiency heat pumps, to high-performance glass, to insulation, to net-zero buildings and building retrofits, to smart thermostats, and efficient water distribution, see below for the full list of every building and energy efficiency stock in Carbon Collective's Climate Index.

Worldwide, buildings account for 32% of energy use.

We use a significant amount of energy to keep our homes and buildings lit and at an optimal temperature. And with rising urbanization and the severe shortage of housing, we’re going to need a lot more buildings over the next 10-20 years.

25% - 60% of energy used in heating/cooling gets wasted.

Buildings, especially old buildings, can be quite wasteful. An ideal building acts like a sealed box, keeping the internal temperature fairly constant, regardless of external temperature. Most buildings today were constructed in the last century and are pretty drafty boxes. Their often outdated heating and cooling systems have to work a lot harder to keep the inside at the right temperature.

Energy efficiency is profitable and key to solving climate change.

Contemporary energy efficiency technology, from better insulation, to high performance windows, to heat pumps, can keep our buildings just as comfortable using just a fraction of the energy. Older buildings can benefit from energy efficiency retrofits (the Empire State Building cut its energy use by 40% and paid for itself) and newer buildings can be constructed with the most advanced materials.

Part of the challenge of solving climate change will be the impact of transitioning fossil-fuel burning appliances, like furnaces, to all-electric. Each unit that transitions will put far more demand on the electrical grid, so we need them to run as efficiently as possible.

Here are the publicly traded companies that are making it happen. This list represents all of the building and clean energy efficiency stocks traded on the New York Stock Exchange (except for penny stocks whose share prices were less than $0.50 in our last update).

If you are a Carbon Collective member, you own all of these companies through the Climate Index.

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Passed Exclusionary Filter

Failed Exclusionary Filter

Lacks Proper Information

% ALLOCATED	Company Type	Company	Category	DESCRIPTION
-	Solar Water	A. O. Smith	Lacks Sufficient Information	A. O. Smith sells solar water heaters as well as gas water heaters. They provide no breakdown to see which they generate more revenue from
0.47%	LED	Acuity Brands	Passed Revenue Filter	Acuity sells lighting and building management products, including LED drivers, power suppliers, inverters, and more, and sells no products specifically to the fossil fuel industry
-	Water Distribution	Advanced Drainage Systems	Failed Water Filter	Advanced Drainage Systems does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
-	Net-zero building	AECOM	Lacks Sufficient Information	AECOM helps clients achieve net zero emissions in their buildings among other pro-climate projects, but it also works with many oil and gas companies. It is unclear what makes up a majority of its revenue.
0.02%	LED	Agrify	Passed Revenue Filter	Agrify makes its revenue in part from the sale of LED grow lights, a Drawdown solution. It builds no products specifically for the fossil fuel industry.
0.26%	Retrofit	Ameresco	Pure Play	Ameresco makes buildings more energy efficient through focus on systems like the HVAC system. It also builds renewable power plants, sells solar PV products, and owns and operates a wind power project.
0.02%	LED	Amtech Systems	Passed Revenue Filter	Amtech Systems derives its revenue in part from LED lighting, a drawdown solution, through the sale of capital equipment and related consumables for use in LEDs while creating no products specifically for the fossil fuel industry.
0.07%	High Performance Glass	Apogee Enterprises	Passed Revenue Filter	Apogee sells aluminum frames, architectural glass, and value-added glass and acrylic products that help buildings stay better insulated. It builds no products specifically for the fossil fuel industry.
5.00%	LED	Applied Materials	Passed Revenue Filter	Applied Materials derives its revenue in part from the promotion of LEDs and solar PVs, through the sale of LED products and products used to manufacture solar PVs. It creates no products specifically for the fossil fuel industry.
0.02%	Water Distribution	Atlas Technical Consultants	Passed Revenue Filter	Atlas Technical derives some of its revenue from promoting Drawdown solutions like water distribution efficiency. It creates no products specifically for the fossil fuel industry.
0.02%	LED	AXT	Passed Revenue Filter	AXT sells semiconductor substrates used in LEDs, thermal imaging, and autonomous vehicles. It makes no products specifically for the fossil fuel industry, thus passing our revenue filter.
0.19%	Water Distribution	Badger Meter	Passed Revenue Filter	Badger Meter sells water meters that can help water utilities detect leaks.
0.24%	Insulation	Beacon Roofing Supply	Passed Revenue Filter	Beacon Roofing Supply is included because it sells and distributes insulation products, solar paneling, solar inverters and solar panels mounting hardware, all Drawdown solutions, while deriving no revenue from products specifically made the fossil fuel industry.
-	Building Automation	Belden	No Drawdown Solution	Belden sells basic connectiviting solutions for energy and telecom, but not products specifically designed to strengthen and expand the grid, and therefore does not produce a Drawdown solution
-	Net-zero building	Carlisle Companies	Failed Defense Filter	Carlisle sells in-flight connectivity applications for military aircrafts, which fails the defense filter because it sells a product to the defense industry that is not a Drawdown solution.
2.88%	Heat Pumps	Carrier Global	Passed Revenue Filter	Carrier sells HVAC products including high efficiency heat pumps. It also sells refrigeration services and building systems like those for carbon monoxide detection.
0.21%	Building Automation	Comfort Systems USA	Passed Revenue Filter	Comfort Systems USA derives revenue from replacing old HVAC systems with more efficient systems, a Drawdown solution, while creating no products specifically for the fossil fuel industry.
-	LED	Corning	Lacks Sufficient Information	Corning produces LED products and also emissions control products for the fossil fuel industry. It is unclear which is a greater percentage of the revenue.
-	LED	Cree	Failed Defense Filter	Cree sells materials products and RF devices used in military communications, which fails the defense filter because it sells something to the defense industry that is not a Drawdown solution.
-	Alternative Cement	CRH	Failed Revenue Filter	High-Performance Glass is a small part of their revenue. CRH still makes most of its revenue from conventional cement, concrete and asphalt. They're investing in alternative cement that's lower emission, that's still under 15% of the total material they use to make cement
0.02%	Dynamic Glass	Crown ElectroKinetics	Pure Play	Crown's glass changes its opacity and reflectiveness in response to outside weather conditions. Unlike others, Crown's glass also allows for manual control
-	LED	CVD Equipment	Failed Defense Filter	CVD sells MesoPlasma™ printing services and products (heaters, antennas, and sensors) to the defense industry, which fails the revenue filter because it sells something to the defense industry that is not a Drawdown solution.
-	LED	Daktronics	No Drawdown Solution	Daktronics sells LED displays for various purposes like sports, architecture, and more.
0.28%	LED	Diodes	Passed Revenue Filter	Diodes sells discrete semiconductor products, which are heavily used in the consumer electronics industry, as well as analog products comprising power management devices like LED lighting drivers, which are crucial to an LED circuit.
-	Water Distribution	Ecolab	Failed Revenue Filter	Ecolab offers products that can help businesses conserve water, a Drawdown solution, but also sells products built specifically for the fossil fuel industry. It is unclear which it makes more revenue from
-	LED	eMagin	Failed Defense Filter	eMagin sells weapons sights, which fails the defense filter because this would be categorized as a weapons-related sale.
-	Smart Thermostat	Emerson Electric	Lacks Sufficient Information	Emerson Electric Co. produces smart thermostats, a Drawdown solution, but also sells certain products to the oil and gas industry. It is unclear which segment it makes more revenue from.
-	LED	Energizer Holdings	No Drawdown Solution	Energizer Holdings, makes only batteries for household products and lighting products for flashlights and headlamps, neither of which are Drawdown solutions.
0.02%	LED	Energy Focus	Pure Play	Energy Focus makes a variety of LED products, such as replacements for fluorescent lamps and retrofits for military facilities.
-	Water Distribution	Euro Tech Holdings	Failed Water Filter	Euro Tech Holdings does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
-	Water Distribution	Evoqua Water Technologies	Failed Water Filter	Evoqua Water Technologies does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
-	Water Distribution	Franklin Electric	Failed Water Filter	Franklin Electric does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
-	Heat Pumps	Graham	No Drawdown Solution	Graham builds heat pumps, but not high-efficiency heat pumps, meaning they do not produce a Drawdown solution
-	Water Distribution	Granite Construction	Failed Water Filter	Granite Construction does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
-	Water Distribution	Helios Technologies	Failed Water Filter	Helios Technologies does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
0.02%	LED	Highway Holdings Limited	Passed Revenue Filter	Highway Holdings does metal stampings and manufactures a variety of mechnical and electronic products, including LED power supplies, otherwise known as LED drivers.
-	Smart Thermostat	Honeywell International	Failed Defense Filter	Honeywell has an aerospace segment which is categorized as fossil fuel revenue that comprises a greater portion of its net sales than its production of smart thermostats, a Drawdown solution. They also fail the defense filter.
0.05%	Water Distributionlt	IDEX	No Drawdown Solution	IDEX produces fluid and metering technologies, but not water conservation technologies, meaning they do not produce a Drawdown solution.
0.24%	Insulation	Installed Building Products	Passed Revenue Filter	Installed Building Products sells insulation products, including fiberglass, cellulose, and spray foam. It also sells advanced caulk and sealant products.
0.23%	Water Distribution	Itron	Passed Revenue Filter	Itron generates 60.8% of its revenue from device solutions that deal with water measurement and control and networked solutions like smart meters and leak detection products. It builds no products specifically for the fossil fuel industry.
3.34%	Building Automation	Johnson Controls International	Passed Revenue Filter	Manufactures heat pumps and HVAC solutions
0.69%	Heat Pumps	Lennox International	Passed Revenue Filter	Lennox sells HVAC systems, which include high effiiciency heat pumps and air conditioners. They also sell refrigeration systems.
-	LED	LG Display	No Drawdown Solution	The LEDs that LG makes are all used in their TV and smartphone displays. Tech displays are not a Drawdown solution.
0.02%	Building Automation	Limbach Holdings	Passed Revenue Filter	Limbach sells a variety of building solutions, including performing energy audits and retrofits, a Drawdown solution.
0.02%	LED	LSI Industries	Passed Revenue Filter	LSI generates 67% of its revenue from LEDs for general use in parking garages and restaurants, and the rest from visual image elements for graphic displays.
-	Insulation	Lydall	No Drawdown Solution	Lydall creates insulation for things like car interiors to reduce noise, not to help buildings stay temperate, meaning they produce no Drawdown solution
0.05%	LED	Magnachip Semiconductor	Passed Revenue Filter	Magnachip Semiconductor derives its revenue in part from the promotion of LEDs and solar PVs, through the sale of LED products and products used with solar PVs. It creates no products specifically for the fossil fuel industry.
-	LED	Methode Electronics	No Drawdown Solution	Methode sells electronic components like LEDs and sensors to automotive OEMS, external lighting solutions, and telecommunications products.
-	Water Distribution	Montrose Environmental Group	Lacks Sufficient Information	Montrose helps clients deal with water distribution issues among other pro-climate projects, but it also works with many oil and gas companies. It is unclear what makes up a majority of its revenue.
-	Water Distribution	Mueller Industries	Failed Water Filter	Mueller Industries does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
-	Water Distribution	Mueller Water Products	Lacks Sufficient Information	Mueller Water Products, sells water leak detection systems, a Drawdown solution, but also has an infrastructure segment that has some customers in the natural gas industry. A breakdown of that segment is not present.
-	Water Distribution	NV5 Global	Lacks Sufficient Information	NV5 helps clients achieve net zero emissions in their buildings and deal with water distribution issues among other pro-climate projects, but it also works with many oil and gas companies. It is unclear what makes up a majority of its revenue.
0.02%	LED	O2Micro International Limited	Passed Revenue Filter	O2Micro sells integrated circuits that have many applications including LEDs, zero emission vehicles, phones, and more.
0.02%	LED	Orion Energy Systems	Passed Revenue Filter	Orion Energy Systems, derives its revenue in part from LED lighting products and works on retrofit projects, both of which are Drawdown solutions. It creates no products specifically for the fossil fuel industry.
0.61%	Insulation	Owens Corning	Passed Revenue Filter	Owens Corning derives its revenue in part from insulation, a drawdown solution, while receiving no revenue from products specifically for the fossil fuel industry. The rest of its revenue comes from other building products like glass fiber materials.
-	Water Distribution	Pentair	Failed Water Filter	Pentair offers products that can help businesses conserve water, a Drawdown solution, but also sells products built specifically for the fossil fuel industry such as fracking fluids. It is unclear which it makes more revenue from.
-	Water Distribution	Perma-Pipe International	Failed Water Filter	Perma-Pipe International does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
0.09%	High Performance Glass	PGT Innovations	Passed Revenue Filter	PGT sells aluminum frames, energy efficient glass, and other window related products that helps buildings save energy through better insulation
0.40%	LED	Power Integrations	Passed Revenue Filter	Power Integrations sells analog and mixed-signal integrated circuits among other electronic circuitry, applications of which include LCD monitors, computers, and LED lighting.
0.02%	Dynamic Glass	Research Frontiers	Pure Play	Research Frontiers develops suspended particle device light control technology that undergirds dynamic glass technology.
-	Net-zero building	Resideo Technologies	No Drawdown Solution	Resideo tech makes wifi-connected thermostats, but not smart thermostates, the Drawdown solution
0.02%	Insulation	ReTo Eco-Solutions	Passed Revenue Filter	ReTo Eco-Solutions manufactures environmentally friendly construction materials using less cabon intensive alternative materials, eg. making cement with fly ash. Its products are have a variety of end uses, including water absorption, flood control, and water retention.
-	Water Distribution	Rexnord	Failed Water Filter	Rexnord does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
-	Water Distribution	Roper Technologies	Failed Water Filter	Roper Technologies does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
0.02%	LED	SemiLEDs	Pure Play	SemiLEDs sells LED chips, components, and modules, which are used for general lighting, horticulture, polymer curing, and more.
-	LED	SGOCO Group	No Drawdown Solution	SGOCO made zero revenue from their Drawdown solution, their LED business, in 2020
-	LED	Steel Partners Holdings	Lacks Sufficient Information	Steel Partners Holdings L.P. produces LEDs, a Drawdown solution, but also produces tubing for the oil and gas industry, which is considered fossil fuel revenue. It also produces blades for meat/fish processing plants.
-	Water Distribution	Sterling Construction	Failed Water Filter	Sterling Construction does not produce any not leak detection or water conservation technologies and therefore fails our water distribution efficiency filter.
0.09%	High Performance Glass	Tecnoglass	Passed Revenue Filter	Tecnoglass sells a range of high performance windows and derives no revenue from products dependent upon the fossil fuel industry.
-	Water Distribution	Tetra Tech	Lacks Sufficient Information	Tetra Tech helps clients achieve net zero emissions in their buildings among other pro-climate projects, but it also works with many oil and gas companies. It is unclear what makes up a majority of its revenue.
-	Heat Pumps	The Gorman-Rupp	No Drawdown Solution	Gormann-Rupp builds heat pumps, but not high-efficiency heat pumps, meaning they do not produce a Drawdown solution
0.54%	Insulation	TopBuild	Passed Revenue Filter	TopBuild sells insulation products for buidlings, as well as other home products like rain gutters, glass, and afterpaint. It makes no revenue specifically from serving the fossil fuel industry
2.74%	Heat pumps	Trane Technologies	Passed Revenue Filter	Trane sells various HVAC products including high efficiency heat pumps, a Drawdown solution.
0.56%	LED	Universal Display	Passed Revenue Filter	Universal Display sells LED products for display and solid-state lighting applications. It also provides contract research services for chemical materials synthesis.
0.09%	Dynamic Glass	View	Pure Play	View's dynamic glass is cloud-connected, automated, and allows for control of settings through smart devices in order to adjust for heat, lighting, and more.
-	Smart Thermostat	Viomi Technology	No Drawdown Solution	Viomi does not sell smart themostats, meaning they do not produce a Drawdown solution
0.12%	Building Automation	Vivint Smart Home	Passed Revenue Filter	Vivint sells cloud-enabled smart home operating systems that enable home owners to run their HVAC and other systems with less energy.
0.40%	Water Distribution	Watts Water Technologies	Passed Revenue Filter	Watts sells generated 52% of its revenue residential & commercial leak detection and water quality monitoring products, and less than 30% of its revenue from gas products like boilers.
1.49%	Water Distribution	Xylem	Passed Revenue Filter	Xylem sells water infrastructure services related to transport and treatment, applied water solutions, and measurement & control solutions like leak detection and remote monitoring. They create no products specifically for the fossil fuel industry.