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Publisher（版元）
慧通信技術工業株式会社（Kei Communication Technology Inc.）
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https://www.ieee802.co.jp/cases/index-en.php
Citation example
慧通信技術工業株式会社（Kei Communication Technology Inc.）, "Personal Energy®, Portable UPS, Uninterruptible Power, DC Power, Autonomous Power and Off-Grid Case Studies | Kei Communication Technology"
https://www.ieee802.co.jp/cases/index-en.php

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Personal Energy, portable UPS, uninterruptible power, DC power, autonomous power and off-grid case studies

Case Studies / Field Records

Personal Energy® / Portable UPS / Uninterruptible Power DC Power / Autonomous Power / Off-Grid Case Studies

Office buildings, underground facilities, disaster-radio sites, bridges, smart grids, vessels, order centers, operating rooms, off-grid clinics, social-welfare facilities and international summit-security sites. These pages show power systems configured around the power requirement, installation environment and operating method of each site.

11 projects / 12 pages
Published case studies
UPS / DC / Off-Grid
AC, DC, solar generation, storage and generation configured around the application and site.
Over 10 years of monitoring records
The clinic delivered in 2013 includes one-second measurements and continuous 24/7 remote monitoring.

Power Where It Is Needed

Deliver stable power where and when it is needed

Power requirements are defined by where the power is used and what it must support. These cases include whole-building solar-backed power, low-voltage off-grid design, restoration protection, unattended mountain infrastructure, mobile bridge-maintenance power, smart-grid measurement, quiet marine power, FAX order continuity, monitored medical UPS, phase-free power for social-welfare facilities, long-term monitored off-grid clinic operation and independent security-radio charging at an international summit.

Case Studies

Published case studies

Start with the application or site closest to your own. Each page shows the installed system and its operating record.

Taiho Bosai Part 1 | Choosing an Off-Grid Architecture for an Entire Headquarters Building
CASE 01 / OFFGRID

Taiho Bosai Co., Ltd. / Part 1

Taiho Bosai Part 1 | Choosing an Off-Grid Architecture for an Entire Headquarters Building

Instead of adding emergency-only equipment, solar generation, batteries, LP-gas generation and utility power were operated as one power system in both normal and emergency conditions.

Why this case matters

Whole-building uninterrupted operation with solar generation on 25 kW single-phase three-wire service.

Single-phase three-wire / 25 kW Solar generation / whole-building no-break power
View case study →
Taiho Bosai Part 2 | Why the Building Was Kept on Low-Voltage Service
CASE 01 / LOW VOLTAGE

Taiho Bosai Co., Ltd. / Part 2

Taiho Bosai Part 2 | Why the Building Was Kept on Low-Voltage Service

Seasonal and steady loads were separated, air-conditioning was shifted to GHP, electrical capacity was capped at 25 kW, and normal demand was held around 12–13 kW to preserve low-voltage service.

Why this case matters

Off-grid design that changes the assumption that 50 kW and above requires high-voltage service.

Seasonal loads shifted to GHP 25 kW cap / normal demand about 12–13 kW
View case study →
ESCA | Portable UPS Protection Against Power-Restoration Failures
CASE 02 / POWER RESTORATION

ESCA Co., Ltd. / Underground Shopping Center

ESCA | Portable UPS Protection Against Power-Restoration Failures

A localized no-break design protects communications and control systems through a planned whole-building outage and the restoration event that follows it.

Why this case matters

Protecting equipment from restoration incidents after statutory outages while reducing manual work.

Avoid about 10 hours of whole-building outage impact Protect DX equipment during restoration
View case study →
Off-Grid Power for a Disaster Radio Relay Station in Itsuki Village
CASE 03 / DISASTER RADIO

Itsuki Village, Kumamoto / Disaster Radio Relay Station

Off-Grid Power for a Disaster Radio Relay Station in Itsuki Village

An unattended mountain relay station was made independent with solar generation, battery storage, 6 kW AC output and remote monitoring.

Why this case matters

Power infrastructure for locations where fuel delivery and on-site response are difficult.

11.1 kW solar / 19.2 kWh battery 6 kW AC output / remote monitoring
View case study →
Mobile Power Supporting a 200-Year Bridge | 12 Years in Operation
CASE 04 / MOBILE POWER

Honshu-Shikoku Bridges / Mobile Maintenance Work Cart

Mobile Power Supporting a 200-Year Bridge | 12 Years in Operation

Power was moved onto the work cart itself, reducing dependence on fixed trolley-line infrastructure and supporting twelve years of bridge-maintenance operation.

Why this case matters

Off-grid power that lowers equipment-maintenance cost in harsh environments.

11 systems delivered in 2013–2014 12 years in a marine environment
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Nushima Smart Grid Demonstration | Dynamic Pricing and One-Second Electricity Data
CASE 05 / SMART GRID

Nushima Island / Minamiawaji, Hyogo

Nushima Smart Grid Demonstration | Dynamic Pricing and One-Second Electricity Data

Independent metering at 51 final points created a one-second common-time-axis primary-data foundation linking demand, solar generation, storage, visualization and dynamic pricing.

Why this case matters

A field demonstration of dynamic electricity pricing and a microgrid.

51 points / one-second data Dynamic-pricing study suggested about 13.8% reduction
View case study →
Marine Decarbonization in Operation Since 2017 | Solar Off-Grid Power on Nantai
CASE 06 / MARINE OFFGRID

Lake Chuzenji / Sightseeing Vessel Nantai

Marine Decarbonization in Operation Since 2017 | Solar Off-Grid Power on Nantai

Passenger-service loads were separated from propulsion and supplied through 4.2 kW CIS solar, 2.4 kWh storage and up to 3 kW AC output, with the onboard generator available as auxiliary input.

Why this case matters

Off-grid power designed to create quiet conditions while the vessel is berthed.

4.2 kW CIS solar / 2.4 kWh storage About nine years in service since 2017
View case study →
Portable UPS Protection for a FAX Order Center
CASE 07 / UPS & FAX BCP

Oriental Bakery Co., Ltd. / Order Center

Portable UPS Protection for a FAX Order Center

The complete previous-day order path was protected as one critical load: communications, FAX server, multifunction printer and staff confirmation.

Why this case matters

Power backup for the FAX server and multifunction printer.

Existing UPS runtime about 10 minutes MFP + FAX server + ONU + router + HUB
View case study →
Whole-Facility Energy Multiplexing for 72-Hour Continuity
CASE 09 / ENERGY MULTIPLEXING

Masumikai Social Welfare Corporation / Elderly Care, Day Service and Childcare

Whole-Facility Energy Multiplexing for 72-Hour Continuity

Utility power, on-site generation, city gas, LP gas, two 54 kVA-class generators, a 980 kg bulk tank, smart metering and operations were combined as multiple independent paths.

Why this case matters

Phase-free power supply for a social-welfare facility.

Two 54 kVA-class generators / 108 kVA total 980 kg LP-gas bulk storage / whole-facility load management
View case study →
Japan’s First Off-Grid Clinic | Tanabe Clinic’s Power Independence and Continuity of Care
CASE 10 / MEDICAL OFFGRID

Tanabe Clinic / Sakuho, Nagano / Delivered in 2013

Japan’s First Off-Grid Clinic | Tanabe Clinic’s Power Independence and Continuity of Care

Delivered in 2013. Our company redesigned and installed the building-wide power system, supporting daytime off-grid clinical operation with more than ten years of one-second measurements and 24/7 remote monitoring.

Why this case matters

Off-grid clinical operation backed by long-term, one-second power measurements and continuous monitoring.

2013 delivery / 19.74 kW solar / 57.6 kWh battery Custom BMS576 / 12 kW + 11 kW AC outputs
View case study →
G7 Ise-Shima Summit 2016 | Off-Grid Radio Charging Station for Security Operations
CASE 11 / SECURITY OFFGRID

42nd G7 Ise-Shima Summit / Chubu Centrair International Airport

G7 Ise-Shima Summit 2016 | Off-Grid Radio Charging Station for Security Operations

At the 2016 summit, solar generation and Personal Energy BMS576 supplied a security-radio charging station in an airport bonded area where utility power was unavailable.

Why this case matters

Independent charging for security radios without a utility connection or routine generator refueling.

Adoption announced May 20, 2016 Solar photovoltaic generation + Personal Energy BMS576
View case study →
Personal Energy ／ Kei Communication Technology Inc. ／ https://www.ieee802.co.jp/