Call for Proposals for Energy-Efficient Renovations of Existing Buildings in Japan

Introduction

The Japanese government continues to push forward initiatives aimed at enhancing energy efficiency in existing buildings. On April 18, 2023, the Ministry of Land, Infrastructure, Transport and Tourism announced an official call for proposals related to the renovation of structures to improve their energy conservation capabilities. This initiative is part of the fiscal year's project aimed at stimulating private-sector investment in energy-efficient improvements and contributing to Japan’s goals for reducing carbon footprint and promoting sustainable living.

Project Overview

The key requirements for the proposed renovation projects include:
1. Focus on Building Envelope Improvements: The renovations must primarily involve enhancing the building envelope. This includes modifications to windows, exterior walls, and other critical areas that contribute to energy efficiency. If high-performance ventilation systems are installed, only a modification that assures the ventilation route is necessary, meaning that a drastic increase in the thermal performance of the structure is not required.

2. Energy Consumption Reduction by 20% or More: Renovation efforts should aim for at least a 20% reduction in energy consumption compared to pre-renovation levels. In cases where more than 20% of the building envelope is modified, a 15% reduction in energy consumption is acceptable. Notably, if the installation of advanced ventilation systems results in a significant decrease in energy use on the specified floor, the project can still qualify even if it only addresses that single level.

3. Compliance with Energy Performance Standards: After the renovations, buildings must meet established energy performance standards to qualify for support. This ensures that projects undertaken provide a tangible benefit to energy savings and efficiency in the long run.

Application Timeline

The application period for interested parties will run from April 18 to May 23, 2023. During this time, stakeholders from the private sector are encouraged to submit their proposals in line with the requirements outlined by the Ministry.

Application Process and Selection

Details regarding the application process and requirements can be accessed on the ministry’s official website. Evaluation of submitted proposals will commence shortly after the deadline, with results expected to be disclosed around August 2023. It's worth noting that the possibility of a second round of proposals has not yet been determined, leaving the door open for future opportunities.

Further Information

For any inquiries regarding application procedures or project requirements, stakeholders can contact the Evaluation Office of the Existing Building Energy Efficiency Promotion Project via their dedicated
website or email at kaishu@hyoka-jimu.jp.

Conclusion

The push for energy-efficient renovations signifies a significant step forward in Japan’s comprehensive strategy to tackle environmental sustainability. As the nation grapples with the challenges of climate change, initiatives such as this open pathways for innovation within the construction industry. The collaboration between the government and private sector is vital in realizing these energy goals, showcasing a committed pursuit of a greener future for all.