Green Capsular Solution
GCS is the world's first BIPV panel that generates electricity from both sunlight and heat — replacing building glass while producing clean energy around the clock.
The Product
Standard solar panels are opaque — they cannot replace building glass. GCS is designed from the ground up as a BIPV product: semi-transparent, architecturally elegant, generating electricity from both sunlight and the heat it produces.
HOW IT WORKS
The upper semi-transparent layer absorbs sunlight and converts it to electricity, while transmitting ~21% of visible light through the glass for natural daylighting. The lower layer captures the heat generated in the process and converts it to an additional independent stream of electricity — using a 20K horizontal temperature gradient created by laser-patterned pyrolytic graphite. A radiative cooling coating on the rear sustains output through the night.
Above standard commercial silicon — with ~21% visible light transmittance and active thermal management. No competing BIPV product provides more than one of these simultaneously.
Market Opportunity
EU EPBD regulation (2026/27) effectively mandates on-site generation for new commercial buildings. GCS enters exactly as the regulatory catalyst fires — with no competitor in the semi-transparent, high-efficiency segment.
Replaces standard glazing. AVT ~21% maintains natural daylighting while generating electricity. EPBD-compliant.
Electricity + active cooling (reduced cooling load) + TEG output. Unique value for facilities spending $10–50M/year on power.
21% light transmittance allows photosynthesis. Two revenue streams from the same surface area.
Train stations, shopping centers, office buildings — glass roofs that generate power with architectural elegance.
Technology
Each innovation is individually difficult to replicate. Together they solve problems that have blocked every previous attempt at a high-efficiency transparent solar panel.
GCS's proprietary thermal routing system overcomes a fundamental physics barrier that has prevented every previous solar thermoelectric product from reaching commercial viability. Where others fail, our architecture sustains the temperature gradient needed to generate meaningful power — at panel scale, continuously.
Patent Pending · Validated at independent laboratory
A novel material system — identified through years of materials research — converts thermal energy directly into electricity at room temperature with an efficiency class previously unavailable at building scale. The material can be manufactured at industrial scale, keeping costs commercially viable without sacrificing performance.
Patent Pending · Performance independently verified
A carefully selected photovoltaic absorber delivers efficiency above standard commercial silicon — while remaining semi-transparent. The result: a panel that looks like premium architectural glass, admits natural light, and generates more electricity per square meter than any competing BIPV product on the market. Long-term stability has been validated under accelerated aging conditions.
Certified efficiency · BIPV-grade durability validated
ACTIVE THERMAL MANAGEMENT
GCS's proprietary system extracts heat from the photovoltaic layer during operation, reducing the panel's operating temperature. This improves PV efficiency and extends component lifetime — a benefit unavailable in any competing BIPV product.
Compared against existing BIPV products — the only market GCS competes in.
| BIPV Product | PV Efficiency | Transparency (AVT) |
|---|---|---|
| Onyx Solar a-Si / CdTe · Spain |
5–11% | 15–20% |
| Heliatek Organic PV · Germany |
8–10% | 30–40% |
| Polysolar CIGS thin-film · UK |
11–13% | ~25% |
| GCS Proprietary dual-layer technology · Israel · Patent Pending |
21.6% | ~21% AVT |
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