Solar Panels

Tecnoglass installed 15,237 solar panels at their manufacturing facility, generating 19,555 MWh of renewable electricity



in revenue since 2012


Million Dollars

in 2020 revenue

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The Path to Drawdown: High-Performance Glass

Buildings and construction account for 38% of global CO2 emissions and 35% of energy use. Much of this energy-use is the result of heating, ventilation and air-conditioning (HVAC), lighting, information and communications systems, security and access systems, fire alarms, elevators, appliances, and indirectly through plumbing.

In most buildings, some of the energy used in heating and cooling the interior goes to waste through windows. Windows, even when closed, are much less efficient than insulated walls at keeping room temperature in and outside temperature out - by a factor of ten or more.

High-performance glass solves this by replacing conventional plain glass. High-performance glass uses any of several technologies that can reduce heat flow through glass, including multiple layers, low-emissivity glass, tinted glass, and vacuum glazing.

High-performance glass is already widely adopted in wealthy countries. In the rest of the world, a faster and wider installation of high-performance glass can help reduce a substantial amount of GHG emissions by 2050:

  • <::marker> In 2018, 5 billion square meters of high-performance glass were installed in residential buildings, and 130 million sq. meters in commercial buildings
  • <::marker> By 2050, 13.7 billion sq meters should be installed in residential buildings and 7.5 billion sq meters in commercial buildings

If this scale can be achieved by 2050, high-performance glass can avoid 12.6 gigatons of emissions and save $3.9 trillion in energy costs over building lifetimes for an installation cost of $10.8 trillion.

What We Want to See Improve

Track GHG Emissions

We commend Tecnoglass for their initiatives to reduce their carbon footprint. But they don’t yet report the GHG emissions from their manufacturing and distributions. Without this metric, investors can’t know precisely what impact their initiatives have on the sustainability of Tecnoglass’ business. We urge them to adhere to either the SASB or TCFD reporting standards and include scope 1, 2 and 3 emissions in their sustainability reports.

Accelerate Switch to Renewables

Tecnoglass has been installing solar panels at their manufacturing facility. Yet, they still own six natural gas power generation plants (p. 33) with an aggregate capacity of 10 MW which supply the electricity needed in the whole manufacturing complex. We urge Tecnoglass to accelerate their switch to renewable energy to reduce the amount of fossil fuels they need to burn in their manufacturing process.

Nudge Suppliers to Reduce Emissions

Tecnoglass relies (p. 3) on third-party suppliers for raw materials. Since the vast majority of manufacturing companies’ GHG emissions are generated in their supply chain, we want to see Tecnoglass pushing their suppliers to reduce their own emissions. On a practical level, Tecnoglass should include emissions reductions as an explicit expectation in a supplier code of conduct.

Related High-Performance Glass Stocks in the Climate Index

View All Climate Index Stocks →

Allocated Company Description


PGT, Inc. (PGTI)

PGT makes impact-resistant windows and doors that can withstand the toughest weather conditions and improve building energy efficiency


Tecnoglass (TGLS)

Tecnoglass makes architectural glass that saves energy from heating and cooling. Building energy efficiency is key for lowering emissions


Apogee Enterprises (APOG)

Apogee makes custom high-performance glass that maximizes building insulation. High-performance windows are key in cutting emissions related to buildings

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