The global Solar Power Windows market size is projected to reach USD 2.02 billion by 2029

Any type of technology that uses windows on buildings to generate electricity from the sun could be classified as a “solar power window.” Solar window technology (sometimes referred to as solar glass) isn’t ready for commercial production yet, which means that they aren’t available for you to install in your home. However, there are several technologies being developed that could hit the mass market in the near future.

Solar energy offers a viable solution to our growing energy need. While adoption of conventional photovoltaics on rooftops and in solar farms has grown rapidly in the last decade, there is still plenty of opportunity for expansion. See-through solar technologies with partial light transmission developed over the past 30 years have initiated methods of integration not possible with conventional modules. The large-scale deployment necessary to offset global energy consumption could be further accelerated by developing fully invisible solar cells that selectively absorb ultraviolet and near-infrared light, allowing many of the surfaces of our built environment to be turned into solar harvesting arrays without impacting the function or aesthetics.

Source: GlobalInfoResearch, “Global Solar Power Windows Market 2023 by Manufacturers, Regions, Type and Application, Forecast to 2029”

Unlike conventional utility PV modules, BIPV window applications must respond to aesthetic requirements (e.g., color, average visible light transparency (AVT), image clarity) in addition to power production. Consequently, a variety of power-generating window technologies have been developed over the past several decades to address these features. Despite a myriad of BIPV window concepts, each share at least one operating characteristic: one or more surface(s) of the insulated glass unit (IGU) window absorbs a portion of incident sunlight for electrical power conversion. Given that a portion of visible light must pass through the window to reach the building occupant, a reduced spectrum of light is useable for power conversion in BIPV windows. As a result of this reduced amount of useable light, the power production of the device is limited, creating a trade-off between window AVT and PCE. Fig. 2a depicts PV power generation by light absorption and electron-hole pair generation at the inside surface of the exterior glass pane (S2).

While BIPV windows share a common feature of incident sunlight to electrical power conversion in semi-transparent modules, the underlying PV technology varies widely, as shown in Fig. 2bee. Among others, organic PV (OPV), luminescent solar concentrator PV (LSC-PV), thin-film PV, and perovskite PV all enable partial light absorption and have been researched for power-generating window applications. Fig. 2 illustrate typical components found for thin film structures for each of these PV technologies. As shown, each design includes at least one glass surface serving as either the front or back pane. OPV and perovskite PV include electron and hole transport layers encasing the organic/ perovskite material, respectively. Recent advances in these devices exhibit PCEs beyond 8% and 10% under 1-sun illumination at over 25% AVT for OPVs and perovskite devices, respectively. For the case of thin-film PV technology (e.g., thin films of a-Si), PCEs can surpass 5% at more than 30% AVT. Finally, LSC-PV prototypes demonstrate recent milestones such as beyond 2% PCE at more than 44% AVT for large-area (100 cm2 ) module sizes.

According to the new market research report “Global Solar Power Windows Market Report 2023-2029”, published by GlobalInfoResearch, the global Solar Power Windows market size is projected to reach USD 2.02 billion by 2029, at a CAGR of 4.9% during the forecast period.

• Global Solar Power Windows MarketSize(US$ Million), 2018-2029

Source: GlobalInfoResearch, “Global Solar Power Windows Market 2023 by Manufacturers, Regions, Type and Application, Forecast to 2029”.

• Global Solar Power Windows Top5Players Ranking and Market Share（Based on data of 2021, Continually updated）

Source: GlobalInfoResearch, “Global Solar Power Windows Market 2023 by Manufacturers, Regions, Type and Application, Forecast to 2029”.

The global key manufacturers of Solar Power Windows include Onyx Solar Energy, PHYSEE, GruppoSTG, SolarGaps, Brite Solar, Polysolar, Solaria Corporation, Glass to Power, Taiyo Kogyo Corporation, Star 8 International Limited, etc. In 2021, the global top five players had a share approximately 77.0% in terms of revenue.

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