Analysis of Future Energy Development Prospects: Smart Meters as the Next Breakthrough Point

1. What is the effect of a smart grid?

Answer: A smart grid is based on a strong grid structure, supported by a communication and information platform, and uses intelligent control as a means. It covers all aspects of the power system—power generation, transmission, transformation, distribution, consumption, and dispatching—across all voltage levels. It realizes the high integration of "power flow, information flow, and business flow," and is a modern power grid that is strong and reliable, economically efficient, clean and environmentally friendly, transparent and open, and friendly and interactive.

2. What is a power user information collection system?

Answer: The power user information collection system is a system that collects, processes, and monitors in real time the electricity consumption information of various types of power users across the province.


3. What is a smart community?

Answer: It refers to a relatively independent and uniformly managed community where electricity management and services are intelligent. It integrates a smart community management system, smart home systems, smart charging rooms, distributed energy access/energy storage, user energy efficiency management, and smart commercial services. In the near future, a user can click a mouse in the office, and the washing machine at home will start washing clothes, the water heater will start preparing hot water for a bath, the rice cooker will start cooking, and the air conditioner will turn on in advance so the room is cool when you arrive... These are not scenes from a sci-fi movie; they will become reality.


II. Common Customer Questions

1. Why replace the smart electricity meter, and what are the benefits of installing a smart meter?

Answer: At present, most electricity customers use mechanical electricity meters or single-function electronic electricity meters. A smart meter has functions such as electricity metering, information storage and processing, real-time monitoring, automatic control, and information interaction. It is the most important measuring instrument for realizing automation and intelligence in electricity information collection.


      A smart meter records the real-time electricity consumption at home. Residents can query the previous day's or recent daily electricity consumption details through the network. By checking electricity consumption in real time, residents can also calculate the electricity consumption of relevant household appliances, identify the "big electricity consumer" in the home, and use electrical appliances more reasonably to achieve energy conservation. It is estimated that when users actively choose and optimize their electricity usage patterns, peak load can be reduced by more than 15% and total demand by more than 10%.


      When an abnormal power outage occurs in a residential building, the smart meter can feed back information through the collection system to the power supply company, accurately locate the fault point, and further shorten the power outage repair time.

      Smart meters enable automatic meter reading through the collection system, improving the accuracy of meter reading, reducing disturbance to customers, and enabling timely detection of meter abnormalities to avoid electricity bill losses and disputes caused by measurement failures.


2. What functions does a smart meter have?

Answer: In addition to electricity metering, information storage and processing, real-time monitoring, automatic control, and information interaction, smart meters also support bidirectional metering, tiered electricity prices, time-of-use pricing, peak-valley pricing, and other practical needs. They also serve as the technical foundation for distributed power metering, bidirectional interactive services, smart homes, and smart communities.

3. What is the difference between a smart meter and an ordinary meter?

Answer: (1) Compared with previous electricity meters, smart meters add new functions such as measurement information management, electricity usage information management, and electricity consumption monitoring, providing customers with more accurate and timely electricity bill calculation.

(2) They have bidirectional metering capabilities and support the use of distributed energy. In addition to recording electricity entering the user's home, they can also record electricity supplied by the user to the grid. If the user has self-built distributed clean energy generation facilities such as wind or solar power, when the generated electricity is more than needed, the excess can be fed into the grid, achieving energy conservation, environmental protection, reduced carbon dioxide emissions, a low-carbon lifestyle, and improved economic benefits for the user.

4. What are the principles for replacing smart meters by the power supply company? Which customers can have their meters replaced? Are both urban and rural customers eligible? What is the installation scope?

Answer: (1) Principles: Since June 2010, all newly installed users have been equipped with smart electricity meters; for electricity meters in use for more than 7 years, they will be gradually replaced with smart electricity meters; for some ordinary electricity meters without an RS485 interface, they will be gradually replaced with smart electricity meters equipped with an RS485 interface to enable remote collection.

5. Is there any charge for installing/replacing a smart meter?

Answer: During the entire construction and transformation of the smart grid, State Grid Corporation will replace all electricity customers' meters with smart meters free of charge.

6. Can customers apply to install/replace a smart meter themselves? How to apply? If not, what is the installation/replacement process of the power supply company?

Answer: Replacement process: The power company will notify users in advance (XX days) of the smart meter replacement and will post or distribute relevant power outage notices. For communities where smart meters will be replaced, the relevant departments of the power company will make plans to complete the installation/replacement in the shortest possible time, making every effort to minimize inconvenience caused by power outages.