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11

Magazine for Organic & Printed Electronics

S

olarWindow

Technologies,

Inc. (Columbia,

Maryland) recently

announced that

its transparent

electricity-generating

glass has been suc-

cessfully processed

through the rigorous

autoclave system for

window glass lamina-

tion at a commercial

window fabricator.

Layered with

SolarWindow electric-

ity-generating liquid

coatings, glass mod-

ules were subjected

to the extremely high

heat and pressure of

autoclave equipment

located at the fabrica-

tor’s facility. Despite

SolarWindow mod-

ules being subjected

to the harsh pressure

and temperature

conditions, subse-

quent performance

testing confirmed

that the modules

continued to produce

power, paving the

way for deploy-

ment of the com-

pany’s electricity-generating windows.

“This is one of the most important

advancements for the commercial manufac-

turing of SolarWindow products, and marks

a huge win for all our stockholders, support-

ers, and scientists and engineers. We’ve long

championed the prospect of electricity-gen-

erating windows powering skyscrapers and

tall towers, which alone consume almost

40% of all the electricity generated in the

US,” explained John A. Conklin, president

and CEO of SolarWindow Technologies.

Skyscrapers as

power generators

When clad with electricity-generating

windows, tall towers and skyscrapers

could become clean power genera-

tors. A single SolarWindow installation

on a 50-story building, for example,

could reduce electricity costs by as

much as 50% per year, avoid more than

two million miles of equivalent carbon

dioxide emitted by vehicles on the

road, and achieve a one-year financial

payback, according to independently-

validated engineering modelling.

“I travelled to a custom window

fabrication plant on the west coast and

personally oversaw senior production

staff assemble and position our SolarWin-

dow modules inside the autoclave, close

the door, and initiate the pump-down

cycle,” recalled Conklin. “Hours later, I

witnessed first-hand the moment that

our SolarWindow coatings and modules

emerged unscathed, withstanding the

extremely high-pressure and temperature

inside. I knew immediately that this was

a defining moment for SolarWindow.”

High heat and pressure

The autoclave manufacturing process

uses high heat and pressure to bond layers

of glass required for safety and architectural

glass. Glass is held in place by an interlayer,

between two or more layers of glass.

The interlayer keeps the layers of glass

bonded even when broken, and its high

strength prevents the glass from breaking

up into large sharp pieces. The company’s

electricity-generating coatings are applied

to the inside of these panes and laminate

interlayer during manufacturing. The ability

of these liquid coatings to withstand the

autoclave process is critical to the produc-

tion of electricity-generating windows.

This announcement follows news that

SolarWindow modules recently passed

important weather-performance testing

after being subjected to more than 200

freeze/thaw cycles. These results confirmed

that the company’s electricity-generating

coatings withstand real-world weather

conditions and achieve long operational

lifetimes no matter the outdoor environment

that SolarWindow products are exposed to.

John A. Conklin holding the SolarWindow model IGU

A commercial breakthrough

Electricity-generating glass from SolarWindow Technologies has been successfully

processed at a commercial window fabricator