Effective Use of Renewable Energy

Initiatives for Utilizing Renewable Energy

The Hulic Group promotes the eco-business as one aspect of our 3K businesses (Koreisha (seniors), Kanko (tourism), and Kankyo (environment)), and has set the target for the number of capital investments on renewable energy at three investments or more in each year.

Photovoltaic Generation System

We have been making every effort to reduce CO2 emissions through photovoltaic power generation by installing a photovoltaic cell module on the rooftop of buildings. On the rooftop of Sonare Shakujii, completed in 2018, a 3.3 kW photovoltaic generation system with a capacity to generate upwards of 3,400 kWh of electricity every year has been installed.

Photovoltaic panels
installed on the rooftop of Sonare Shakujii

Amount of Electricity Generated by Solar Power (designed value for key properties)

  • Hulic Head Office Building:
    Approx. 9,400 kWh per year
  • Hulic Asakusabashi Building (PPP project):
    Approx. 15,890 kWh per year
  • Hulic Osaka Building:
    Approx. 10,000 kWh per year
  • Hulic Ginza Building:
    Approx. 6,500 kWh per year
  • Hulic Court Yukigaya:
    Approx. 28,900 kWh per year
  • Hulic Residence Nishi Oi:
    Approx. 23,100 kWh per year
  • Sunny Life Funabashi:
    Approx. 16,800 kWh per year
  • Hospitalment Itabashi Tokiwadai:
    Approx. 10,500 kWh per year
  • Hulic Shimura-sakaue:
    Approx. 10,000 kWh per year

Installation of Solar Heat Panels

Hulic's hotels, multi-unit apartments and buildings that require large amounts of hot water adopt a solar water heating system, which uses solar panels to collect the sun's heat. Water created using this system is supplied to residential units, dormitories and kitchens, among other facilities inside a building.
Hulic Setagaya's solar water heating system was partially funded by the grant to support measures for speeding up the use of renewable heat sources and the grant to projects to promote the introduction of solar heating for multi-unit buildings in Tokyo in fiscal year 2014.

Solar heat collection panels
(Hulic Setagaya)

Installation of Photovoltaic Panels on an Exterior Wall

The Hulic Ogikubo Building is open to a major arterial road on its south side, providing ideal conditions for sunlight exposure. Capitalizing on this, we used a unique and ex tremely thin photovoltaic panel that is sandwiched between glass panes to create a building material for the facade (front of the building). The panels form part of a 3.5 kW system capable of generating upwards of 3,500 kWh of electricity annually.

Facade (Hulic Ogikubo Building)

Wind-power Generation System

Hulic Residence Motoyoyogi adopted three hybrid street lights for external street lighting. This street light generates electricity with wind power (wind speed to start generating power = 1.2m/sec) and solar power. The generated power is supplied to 11 lights including 8 garden lights. They light with only natural energy without using commercial power. Hulic Residence Soka installed a hybrid power generator. This power generator also uses wind power (wind speed to start generating power = 1.2m/sec) and solar power. Supplying electricity to street lights, which illuminate the street along the east side of the river during the night, the generated power contributes to the surrounding area.

Natural Ventilation and Natural Lighting System Developed through Joint Research with the Massachusetts Institute of Technology (MIT)

Link: Natural Ventilation and Natural Lighting System Developed through Joint Research with the Massachusetts Institute of Technology (MIT)

Initiatives for Achieving ZEB through Mega Solar Power Project

With environmental issues becoming more serious, in November 2014, Hulic decided to invest and become involved in a mega solar power plant project located in Hirono Town, Futaba District, Fukushima Prefecture, in order to address society's needs to strengthen our efforts toward environmental management. We expanded the initiative to Ogoyama Town in Kasama City, Ibaraki Prefecture in 2015, and to Yokoshibahikari Town in Sanbu District, Chiba Prefecture in 2016. Using the solar power plants at these three locations, we have achieved about offsite ZEB at the Hulic Head Office Building. ZEB is an acronym for Zero Energy Building. ZEB means that a building uses zero net primary energy annually thanks to improvements made in the energy efficiency of the building and its facilities as well as the use of renewable energy.

Effects of Mega Solar Power Project

Effect 1: Initiative for achieving offsite ZEB through the use of renewable energy

Electricity generated by the solar power plant is sold through a Power Producer and Supplier (PPS) for use by the Hulic Head Office Building, which assists its efforts to become a net ZEB.

The Hulic Head Office Building is a building with high energysaving performance which has been introduced energy saving technologies such as natural lighting and natural ventilation systems, it has been able to reduce the amount of energy consumption by about 40% compared to the amount of energy consumption in other general buildings. The remaining 60% is sourced from renewable energy. Therefore, the Hulic Head Office Building is close to being a ZEB.

Effect 2: Electricity Sales Income and Acquisition of Maintenance Business Know-How

This project includes 20 years of maintenance costs and Hulic Group company Hulic Building Management will, in addition to receiving income from electricity sales, gain knowledge and know-how in the ancillary maintenance business, which it will then make inroads in and expand as a new business segment.

[Illustration of electricity sales business]

Effect 3: Contribution to Great East Japan Earthquake recovery efforts through the operation of the solar business in Fukushima Prefecture

Owning and operating a power plant in Fukushima Prefecture after the Great East Japan Earthquake has effectively utilized the land and contributed to the local economy, while the construction work and maintenance operations farmed out to local businesses, created employment opportunities. In turn, this has served as a proactive contribution to the local rebuilding efforts. The development work for this power plant has been entrusted to local engineering and construction companies. Local individuals were hired to operate the power plant, which will promote a revitalized local economy over a sustained and prolonged period.

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