This store installed three types of solar panels (a solar carport, double-sided vertical solar panels, and rooftop solar panels) and storage cells, thereby storing energy not used by the store during daylight hours and releasing this energy from evening through night. This system also reduces CO2 emissions from not just this store but also other stores by distributing renewable energy to stores where installing solar panels would pose various challenges. (Actual power distribution is slated to begin in September 2026.)
This system will contribute to stable balance of electricity demand and supply by releasing power from storage cells when grid demand is high and charging them when curtailment of solar power output is required.

This store installed perovskite solar cells on the roof and below storefront windows to verify the efficacy of perovskite cells.
Lawson is currently pursuing the adoption of solar cells at stores across Japan. The decision to deploy and test perovskite solar cells, which can be installed in locations other than rooftops, was made in response to challenges to installing solar panels even at stores for which conventional solar systems are not feasible due to location, store structure, and other issues.

Doors were installed to about 80% of the refrigerated and frozen showcases in the store.
By attaching doors to the commonly open-type refrigerated showcases and freezer flat-display showcases, we improved the entry of outside air and the leakage of cold air, thereby achieving substantial energy saving. Attaching doors to refrigerated and freezer showcases and freezer flat-display showcases has been standard at new and remodeled stores since FY2026.

All the refrigerators and freezers in the store, including refrigerated display cases, commercial refrigerators used to store products, and ice makers are all CFC-free (CO2/HC refrigerants-based), which contributes to energy saving and the improvement of global warming caused by CFCs.

Changing the company car for the Supervisor (SV) to an EV makes it possible to create a two-way power flow between the EV and the store by only connecting the EV to the store's EV charger with no need for in-store operation. That is useful to control the store's electricity consumption.

The LAWSON Kodaira Tenjin-cho 2-chome Store, an eco-friendly model store, acquired a five-star rating, the highest in the Building Energy-efficiency Labeling System (BELS), which evaluates the energy-saving performance of buildings on a five-level scale. The store also achieved “net Zero Energy Building” (ZEB), the highest of the three levels (ZEB, Nearly ZEB, and ZEB Ready) in the energy rating system for buildings. If a building has achieved net zero primary energy consumption (energy used for air-conditioning, ventilation, lighting, hot water, etc.) through the use of renewable energy, installation of highly energyefficient equipment etc., the building is given a ZEB rating.

CLT is a wooden building material consisting of multiple layers of wood boards with orthogonally aligned wood grains, laminated together with adhesives. It has high strength and excellent heat insulation properties. It can be used in store structures and interiors to improve the insulation performance of buildings, reducing the burden on air conditioning systems.

Aiming to save energy through efficient operation, we introduced Ultra Eco-Ice, which operates a CO2 freezer at night when the outside temperature is low to produce ice, and uses the stored heat energy to cool cases that require refrigeration during the daytime when the outside temperature is high.