Mori Building Co., Ltd.

Mori Building’s Environmental Initiatives

Energy-conserving Renovations in Existing Buildings

With the enforcement of the Law on Promotion of Renovation for Earthquake-Resistant Structures in 2005, we conducted a seismic resistance check of all buildings operated by Mori Building under seismic-resistant design methods predating the new seismic resistance standards of 1981. For those buildings not meeting the standards (Toranomon 15 Mori Building and Toranomon 11 Mori Building), we undertook seismic resistance and energy-conserving renovations (individual air-conditioning, adoption of high-efficiency, low-carbon lighting etc.). At the same time, we conducted energy-conserving renovations at buildings found by the diagnosis to sufficiently meet earthquake resistance standards (Toranomon 35 Mori Building, Toranomon 36 Mori Building etc.). As a result, we significantly increased energy-conserving performance and greatly reduced CO2 emissions performance from that prior to the renovations.

Toranomon 35 Mori Building

Toranomon 35 Mori Building
  • Number of floors: 9 above ground, 1 underground
  • Total floor area: 10298 m²
  • Completion of construction: August 1981
  • Completion of renovations: September 2011
  • Seismic resistance renovations: ー
  • Energy-conserving renovations
  • Air-conditioning:Individual gas PAC → individual electric PAC
  • Lighting: FL → high-efficiency Hf
  • Elevators: ー

Toranomon 36 Mori Building

Toranomon 36 Mori Building
  • Number of floors: 10 above ground, 2 underground
  • Total floor area: 12200 m²
  • Completion of construction: August 1981
  • Completion of renovations: June 2012
  • Seismic resistance renovations: ー
  • Energy-conserving renovations
  • Air-conditioning: Central → individual PAC
  • Lighting: High-efficiency Hf → LED
  • Elevators: ー

Change in Annual CO2 Emissions, Toranomon 36 Mori Building

Change in annual CO2 emissions, Toranomon 36 Mori Building

Switching Grid Lighting to LED

At buildings adopting grid ceiling lighting fixtures on or after 2000, we developed a method for leaving the lighting fixtures and changing only the light sources to LED, for the purpose of improving energy conservation performance, prolonging equipment life, and conserving resources. This removes the need for ancillary work (restoration work and removal of sprinkler heads, air outlets, emergency lighting, sensors etc.) when changing light sources, greatly simplifying construction and conserving resources. We are also undertaking the switch to LEDs at Roppongi Hills Mori Tower, ARK Mori Building, and other buildings.

1. Existing fixtures (fluorescent lights)
1. Existing fixtures (fluorescent lights)
2. Lamps, ballasts etc.
2. Lamps, ballasts etc.
3. Installation of LED units
3. Installation of LED units
4. Attach louver, switch to LED
4. Attach louver, switch to LED