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This section provides an overview for watt-hour meters as well as their applications and principles. Also, please take a look at the list of 10 watt-hour meter manufacturers and their company rankings. Here are the top-ranked watt-hour meter companies as of May, 2025: 1.Taricco Corporation, 2.Solar Biz Inc., 3.Komachine Inc..
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Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
A Watt-hour meter is an electrical device used to measure the amount of electricity used by a consumer. By measuring the amount of electricity used by factories and residences, Watt-hour meters automatically calculate electricity rates for customers. Watt-hour meters have built-in ammeters and voltmeters, whose values are used to calculate the amount of electricity used. Watt-hour meters have been conventionally equipped with an aluminum disk that rotates to measure the amount of electricity used.
Watt-hour meters are used to measure the amount of electricity consumed by customers. Watt-hour meters are generally found on the exterior walls of homes. By looking at the value displayed on a Watt-hour meter, the amount of electricity used by a household can be calculated. The electric company checks the value displayed and calculates the monthly charge.
Meters are installed not only in homes, but also in factories, commercial facilities, and other buildings that use electricity. All buildings that use electricity are required to have the amount of electricity used checked and are obliged to pay electricity charges.
Electricity consumption (Wh) is calculated by continuously measuring the electric power (P) used per second, dividing it into hourly units, and adding these values together to calculate the amount of electricity used for a given period of time.
There are two types of Watt-hour meters in common use: inductive and electronic.
Inductive Watt-hour meters consist of a current coil, a voltage coil, an aluminum disk, and a measurement device. The magnetic force of the current coil and voltage coil connected to the load generates electromagnetic induction, which rotates the aluminum disk for measurement.
The electronic Watt-hour meter does not use the mechanism of a rotating disk. In the electronic type, a built-in electronic circuit measures the current and voltage of the load and calculates the amount of electric energy. The electronic type has a less mechanical structure and is less prone to breakdowns. It has the advantage of operating for relatively long periods of time without problems.
Recently, smart meters have come into use, allowing for more detailed measurement of electricity consumption as they provide the ability to remotely check Watt-hour meter readings.
Analog induction-type Watt-hour meters have traditionally been the norm. These meters have a structure in which a disk rotates when electricity is used, allowing the amount of electricity to be measured by the number of revolutions. In recent years, digital Watt-hour meters called smart meters are beginning to replace analog meters. Smart meters can send data to remote locations, allowing users to check the amount of electricity they are using even in remote areas. These meters also provide "electricity visualization," by digitally displaying the amount of electricity used, and can be expected to increase users' awareness of their energy consumption and the need for energy conservation. In terms of electricity contracting, because the breaker is built into the smart meter, there is no need to replace it, as in the past. In addition, the electric company will be able to easily monitor the status of electricity usage, which may lead to cost reductions and even lower electricity rates by reducing wasteful power generation. Conversely, a demerit of smart meters is the possibility of the invasion of consumers' privacy. Lifestyle patterns, family composition, and other information can be inferred from electricity usage data generated by smart meters.
*Including some distributors, etc.
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Taricco Corporation was established in the early 1990s in Long Beach, California. The company is a diversified manufacturer of industrial process equipment and systems. The company designs, engineers, fabricates, installs, trains, and warrants equipment as a single manufacturer with total control of quality and responsibility to customers. This level of vertical integration improves performance and reduces costs for customers. The company’s three primary product models include autoclaves including pressure and vacuum vessels, ovens for batch, curing drying, or vacuum thermal processing, and presses with optional heated and cooled platens.
Yueqing Logos Electrical Co., Ltd. (YLE) is a Chinese ISO 9001 certified manufacturer of energy meters established in 2007 and based in Yueqing, Zhejiang. Under the LOGOSMETER brand name, the company primarily produces front panel meters, socket meters, DIN rail energy meters, and plug-in meters. It also offers OEM/ODM, custom design, and after-sales support services including maintenance and installation assistance. YLE primarily serves clients in renewable energy production, electric power distribution, smart grid or city projects, and building automation.
Zhejiang Gomelong Meter Co., Ltd. (ZGM) is a Chinese manufacturer of metering equipment established in 2004 and based in Yueqing City, Zhejiang. The company produces electronic, mechanical, and prepaid electric meter models, as well as prepaid water meters, socket meters, and digital meter displays — all of which are marketed under the brand name GOMELONG. It primarily serves residential and commercial construction contractors, water treatment facilities, and electric power plants. ZGM also offers product customization and technical support services such as troubleshooting, installation guidance, and maintenance.
Zhejiang Yongyang Technology Co.,Ltd. (ZYT) is a manufacturer of domestic and commercial utility meters established in 2007 and located in Yueqing City, Wenzhou. Under the brand YONY, the company produces a wide range of metering equipment including ultrasonic heat meters, three-phase analog energy meters, smart card prepaid meters, and smart water meters. It also offers R&D, product customization, and OEM/ODM services for customers with unique project requirements. ZYT primarily serves clients in the water and heat distribution, energy generation, and smart city sectors.
Komachine Inc., founded in 2017, is a South Korean manufacturer headquartered in Yongin, Gyeonggido, providing marketing and trading platform for the machine industry. The company operates the Komachine platform, allowing machinery manufacturers to register and showcase their new and replacement machines and parts. The platform connects these manufacturers with global buyers, facilitating transactions and exports at relatively low costs. Currently, there are around 4,000 registered suppliers offering a total of 85,000 products on the platform. Komachine Inc. received the presidential award and ministry awards in South Korea and won international startup competitions like Echelon Asia Summit in Singapore and TechBBQ in Denmark.
Zhejiang Yongtailong Electronic Co. Ltd. is a Chinese ISO 9001 certified manufacturer of electronic energy meters established in 2000 and based in TongXiang, ZheJiang. The company's product portfolio includes smart meters, single- and three-phase electronic energy meters for residential or industrial use, prepaid meters, and charging meters for electric vehicles. It also offers product customization, OEM/ODM, and technical support services for customers with unique project requirements. The company primarily serves clients in energy distribution, smart city or grid maintenance, renewable energy, and building automation.
Holley Technology Ltd. is a Chinese manufacturer of measurement meters and systems that was established in 1970 as a division of the Holley Group. Based in Hangzhou, the company primarily produces energy, water, and gas meters, as well as high and low voltage power equipment, transformers, and power fittings. It also offers fuses, insulators, breakers, and cables. Holley Technology also provides additional R&D, installation, and maintenance services for clients with unique use-cases.
CNC Electric Group is a company that was established in the year 1988 and is based in Yueqing, Zhejiang, China. The company is a manufacturer of industrial appliances. They manufacture low voltage electrical products, power transmission and distribution equipment, DC series, and explosion-proof products. Additionally, they provide residential and commercial solutions, as well as industry, construction, and data center solutions. This company has certifications in ISO 9001, ISO 14001, CCC, OHSAS 18001, CE, CB, and SEMKO.
Solar Biz Inc. began in the 1970s in Ft. Atkinson, Wisconson. Solar Biz offers complete solar panel systems for residential and commercial customers ranging from under 5 watts to over 400 watts. Systems include solar panel components with racking and mounting, inverters, power centers, solar charge controllers, batteries, and accessories, AC and DC enclosures, circuit protection, hydro and wind generators and accessories, water pumps and water filtering, tanks, heaters, hot tubs, rain catchments, and appliances such as fans, gas ranges, refrigerators and freezers.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Taricco Corporation |
23.7%
|
| 2 | Solar Biz Inc. |
11.9%
|
| 3 | Komachine Inc. |
10.2%
|
| 4 | Yueqing Logos Electrical Co., Ltd. |
8.5%
|
| 5 | Zhejiang Yongyang Technology Co.,Ltd. |
8.5%
|
| 6 | CNC ELECTRIC GROUP CO.,LTD. |
8.5%
|
| 7 | Osaki Electric Industry Co., Ltd. |
8.5%
|
| 8 | Zhejiang Gomelong Meter Co., Ltd |
6.8%
|
| 9 | Zhejiang Yongtailong Electronic Co., Ltd. |
6.8%
|
| 10 | Holley Technology Ltd. |
6.8%
|
Derivation Method
The ranking is calculated based on the click share within the watt-hour meter page as of May 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
6 | 66.7% |
|
United States of America
|
1 | 11.1% |
|
Japan
|
1 | 11.1% |
|
Republic of Korea
|
1 | 11.1% |
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