Although China has the world's largest power fiber-optic communication network, overall, the overall network layout shows the trend of "strong backbone network, weak access network", "high-end strong, low-end weak". It is understood that in China's power grid, the backbone network of 110kV and above basically achieves 100% fiberization, while the 35kV and 10kV medium voltage distribution network is only 50% fiberized, especially the 380V and 220V user access network of the last mile of the power grid. The fiber rate is extremely low, and fiber access only accounts for 0.14%. The "last mile" user access network fiber optic project of the power grid is actually called the power fiber to the home. Power fiber-to-the-home refers to the use of fiber-optic composite low-voltage cables in low-voltage communication access networks, and the laying of optical fibers with low-voltage power lines to achieve home-to-home, with passive optical network technology, carrying power information collection, intelligent power two-way interaction , "triple network integration" and other services.

In layman's terms, power fiber to the home is to combine a fiber with the ordinary low-voltage line in the home to access the user's home. In the future, this fiber can be used to collect electricity information, water, gas and other information in the home, which can save a lot of manual meter reading process. At present, the construction of smart grids is generally a new residential area, and will be promoted and applied in other old urban areas in the future. Because the optical fiber has the widest transmission channel, this fiber can fully integrate with the current "three-network convergence" strategy planned by the government, reducing the implementation cost of "three-network convergence." In order to comprehensively strengthen the construction of the smart grid and promote the intelligent construction of the last mile of the grid, the grid enterprises have gradually promoted the use. In addition to the new residential buildings, plus the transformation of some existing communities, the prospects for the promotion and application of optical composite low-voltage cables are promising.

It is conservatively predicted that the average annual demand for OPLC for new residential buildings alone will exceed 35 billion yuan (640,000 km/year). It is estimated that the market size will reach 7 billion yuan in 2020, with a compound growth rate of 65%. It is expected that in the next 5 to 10 years, the development of OPLC will help ensure the development of the country's four-in-one, fiber-to-the-home policy implementation, which is also conducive to the development and growth of related companies.

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