The world's first Zero Energy Building Plus certified building.
In 2025, the EnergyX DY-Building became the world's first Zero Energy Building Plus certified building, recognizing its energy performance and integrated design.
Distinct records, in order.
Completion, certification and performance are related — and different. Each carries its own date and its own evidence.
Completion
The EnergyX DY-Building is completed, demonstrating the commercialization of EnergyX's advanced proprietary building envelope technologies and advanced intelligence technologies.
121.7% self-sufficiency
Reported in 2024 for FY2023 performance — the building's first full-year measured result.
Certification
The building becomes the world's first Zero Energy Building Plus certified building — an independent recognition of its energy performance and integrated design.
129.6% self-sufficiency
Reported in 2025 for FY2024 performance — the building again generated more energy than it consumed.
129.9% self-sufficiency
Reported in 2026 for FY2025 performance — the current measured record.
Energy self-sufficiency figures are verified by three independent parties, including the Korea Energy Agency, and are reported separately from the certification record.
Advanced proprietary technologies in operation.
The project brings together EnergyX's advanced proprietary building envelope technologies and advanced intelligence technologies. The project record identifies the installed systems and the basis of reported performance.
Later experiments and upgrades are reported separately, with their own dates — the current technology roadmap is not retroactively part of the original project.