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  • E.I. Engineering Co., Ltd.

    A professional group for energy consulting, from heat sources to power generation equipment.
    Main Image
    Our company designs, analyzes, and diagnoses a wide range of energy equipment from heat source equipment and power generation equipment to renewable energy equipment. We visualize complicated energy equipment and make optimal system operations by utilizing simulation technologies. We independently developed Enepro21 energy simulation software, which can instantaneously calculate the balance of heat and flow rate. An ordinary personal computer is sufficient to review even complicated facilities. We can make simulations by utilizing data about more than 6,000 units of energy equipment investigated in the past. We will also take our 10th anniversary as an opportunity to focus on Asia.

    Product and technology information

    • Energy simulation software Enepro21, Version 3

      Energy simulation software Enepro21, Version 3

      [Product description] This product is the last word in energy simulation software. It features both high accuracy and easy operability. This software is applicable to the design, analysis, and diagnosis of energy equipment. We provide energy consulting services using Enepro21 as well as licensing. Features of Enepro21 include the following. (1) A wide range of energy equipment can be freely evaluated, including power generation equipment. Integrated evaluation of photovoltaics, solar heat, and thermoelectric systems. Free evaluation of the use of unused energy. Evaluation of regional energy use. (2) The annual operations of actual equipment can be reproduced on a computer with error that does not exceed 1 to 2%. (This accurate reproduction of equipment status is the basis of the simulation.) (3) This technical software is available to anyone engaged in the energy field. Quick and accurate simulation using equipment performance data for more than about 6,000 units. (We have also prepared environmental load information, electricity and gas fees, and meteorological data from 28 points throughout Japan.) Rich help functions. (Detailed descriptions displayed about each screen.) Graph and form display of review results and creation of comparison lists. Support for photovoltaics and solar heat use (new function in Version 3). (1) Solar panel simulation is easy even for large-scale power generation. (The direction of installation and the angle of inclination can be different.) (2) Easy simulation also available regarding mounting on a building wall (90 degrees). (3) Possible to review sales for both overall power and surplus power. (4) Great reduction of gas consumption by using solar heat for solar-linked power generation to generate cold heat. (5) Use of solar heat energy by combining a solar water heater/exchanger and a hot water generator. (6) Supports solar heat collectors under both the JIS standards and the European standards (both equation coefficient input and measured value input acceptable). [Intellectual property] Japanese Patent No. 4564594; US Patent No. US8396605 B2.

    • Etomas21


      [Product description] Features of Etomas21 include the following. (1) Creation of periodic reports about energy management designated factories by using specified forms. Also supports the FY2015 report (the report on electric power consumption during power demand equalized hours). Supporting 9,500 business establishments and integrating the data of all companies. Automatic aggregation of business establishment data. (2) Creation of medium- to long-term plans by using specified forms. Simulation by equipment update item selection. Working out several plans and implementing them during the year. Cost aggregation (automatic cost aggregation by the next version) to be reflected in medium- to long-term plans. (3) Low price! Very reasonable license fee. Uniform initial implementation cost, irrespective of the number of business establishments. Provision by licensing. (4) Preparation and retaining of unique databases. Management standard database and energy conservation index database. Accumulation of past energy consumption data. Preparation of CO2 emission basic unit data for electric power and PPS companies and gas generation data for gas companies. (5) Secure system. System integrated within the company. System construction according to the IT environment of each customer. Flexible compliance with revised laws. (6) Flexible, easy-to-operate system. Easy to operate, like ordinary Windows software. Also supports automatic measurement (monitoring). Supports changes to basic business operator information even in the middle of a term. Reviewing the basic units of energy use by setting various parameters (total floor area, etc.). (7) Collaboration with effective consulting services. Presentation of energy-saving action with actual measurements (visualization). Current status analysis of heat-source equipment and review of energy conservation and CO2 reduction activities with Enepro21.

    Company Profile

    Corporate name

    E.I. Engineering Co., Ltd.

    Web address


    45,000,000 (JPY)

    Number of Employees


    Established date


    Head office: Country


    Head office: Address

    2-10-18, Asahidouri, Chuuou-ku, Kobe, Hyogo, 651-0095


    Advertising, investigation, and information services


    Akihiko Ogawa   President

    Main phone number


    Others (Comments)

    [Company strength]
    Energy consulting: The purpose of our consulting business is to consider and propose building, factory, hospital, and community air-conditioning and power generation equipment, and also to plan smart communities. We conduct various simulations according to customer requests and make actual proposals for energy conservation and cost reduction. We have provided consultation to many customers, such as factories and hospitals as well as energy, design, and other companies.
    Package software provision by licensing: We have developed 12 energy-related software products of which Enepro21 is our representative product, and provide them by licensing. Enepro21 is the epitome of the know-how we have accumulated in our consultation business. It is highly accurate and easy to use.
    [Business description]
    We are a professional energy consulting company. We design, analyze, and diagnose various kinds of energy equipment from heat-source equipment to power generation and renewable energy equipment using our independently developed Enepro21 energy simulation software. We make the most of our energy simulation technology to visualize the facts about even complicated energy equipment. This enables optimal system operations, equipment update planning, and system design. We have provided consultation covering 680,000 USRT of large centralized heat-source plants (buildings, factories, and community air conditioning) and 2,750 MW of power generation equipment. This was done by planning new equipment or improving existing equipment.
    Comprehensive energy consulting
    [Strength of products/technologies]
    Our Enepro21 energy simulation software instantaneously calculates a balance between heat generated by equipment and the flow rate. This software features both high accuracy and easy operability. It can be used comfortably on an ordinary computer even for a review of complicated equipment. Enepro21 users can concentrate themselves on simulation by using equipment performance data prepared by our company regarding more than 6,000 units of energy equipment. A great advantage is that Enepro21 can be linked to many programs, such as Estel21 and Enepro21 Multi. Estel21 is used to calculate thermal loads on buildings and Enepro21 Multi is used to review the energies of package air conditioners.
    [Representative's message]
    This is our 10th anniversary and will initiate our new stage. We plan to extend the use of Enepro21 to overseas areas, particularly in Southeast Asia. The energy infrastructures in these areas are expected to grow larger in future. This will also increase demand for energy simulation in planning infrastructures for high-rise buildings, large shopping centers, factories of Japanese companies, and industrial complexes. We will continue to take up the challenge of creating an eco-society in Japan with new partners, as well as the energy and design companies we have been working with.
    [Company structure for market development/overseas expansion]
    We have a Tokyo office for sales in the metropolitan area. We promote collaborations with trading firms, think-tanks, and other parties to develop sales channels. We have started to create an English version of our Enepro21 energy simulation software.
    [Market share/Ranking]
    Our product is the only quick and accurate tool to assist in designing and diagnosing complicated energy equipment, reviewing operations for improvement, and updating or renewing equipment.
    [Awards and media coverage]
    The 27th Technology Promotion Award by The Society of Heating, Air-Conditioning and Sanitary Engineers of Japan (2013); the 22nd SME New Technology and Product Award (2013); The 21st Monozukuri Innovative Parts and Components Award, Environmental Section Award (2010). (All these awards were for Enepro21, and were awarded to software for the first time.)
    Zaikai (October 2014); Zaikai, featuring Kansai Economy Bloc (2011); Nikkan Kogyo Shimbun, Monozukuri Innovative Parts and Components Award, (2010); News Tokyo, Tosei Shimbun (2009).
    [Main Clients / Business History (domestic)]
    Licensing of Enepro21 to Tokyo Gas Co., Ltd., Energy Advance, Toho Gas Co., Ltd., Kanden Energy Solution Co., Inc., Nippon Design Inc., Waseda Environmental Institute, etc. Consultation to energy, design, trading, and manufacturing companies about heat-source equipment, power generation equipment, and community air-conditioning equipment by reviewing operations for improvement and updating equipment.
    [Main Clients / Business History (overseas)]
    Survey for the implementation of highly efficient community air-conditioning for an industrial complex in Iskandal, Malaysia, and consideration of infrastructure service supply to Hangzhou Economic Zone in China (Ministry of Economy, Trade and Industry).Review of the heat-source system for air conditioning at a data center in Thailand and consideration of implementing a cogeneration system for overseas power generation.

    This company is recommended by a support organization

    Kansai Head Office

    Company profile in Japanese

    Company profile in Japanese

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