What are the main sectors in China's energy value chain?
Understanding China's energy industry through broad labels such as "traditional energy" or "new energy" is not enough. CNWattHub organizes the market into 11 sectors so readers can identify what a company does, where it sits in the value chain, who pays it, how it earns profit and where its risks are exposed.
Why sector classification matters
Energy is not one simple market. Upstream resources, manufacturing equipment, engineering delivery, power operation, customer-side services and materials suppliers all have different payment structures, profit sources and risk profiles. A coal company may be driven by resource costs and long-term contracts; a solar company may be driven by technology routes and inventory cycles; an energy-storage company may carry battery-price, safety, project-yield and receivables risks at the same time.
For that reason, CNWattHub does not treat every company with an energy-related concept as a core energy company. We look for evidence of real participation in the value chain, including products, projects, customers, orders, capacity, disclosures or financial statements.
The 11 sectors CNWattHub tracks
Coal
Coal sits at the resource end of the energy system. In China, it supports power security, industrial fuel demand and coking coal supply for steel. A useful coal-company view should separate thermal coal from coking coal and look at resource quality, contracted sales, transport capacity, cash cost and dividend capacity.
Oil and Gas
Oil and gas cover upstream exploration and production, midstream pipelines and LNG terminals, refining, petrochemicals and downstream distribution. The sector should not be read only through crude prices; gas sourcing, storage, terminal utilization, refining margins and customer pass-through mechanisms matter as much as commodity beta.
Power
Power connects energy supply with end-use demand. It includes thermal power, hydropower, nuclear power, renewables, retail power and integrated energy services. As renewables rise, capacity payments, ancillary services, spot-market volatility and flexible generation are changing how power assets earn money.
Solar PV
Solar PV stretches from polysilicon, wafers, cells and modules to inverters, project development and power-plant operation. The key question is no longer only installation growth; margin pressure, inventory, technology routes, overseas channels, receivables and cash conversion now decide company quality.
Wind
The wind value chain includes turbines, blades, towers, castings, bearings, submarine cables, substations and wind-farm operation. Onshore and offshore wind have different economics. Offshore wind depends more on project approvals, installation windows, marine engineering capacity and long-cycle delivery risk.
Energy Storage
Energy storage links renewable generation, grid flexibility, commercial and industrial users, and power-market mechanisms. Companies operate across battery cells, PCS, BMS, system integration, fire safety and project operation. Profit depends on equipment cost, project revenue design, customer credit and safety responsibility.
Hydrogen
Hydrogen covers production, electrolyzers, storage and transport, refueling stations, fuel cells and industrial substitution. The practical question is not whether hydrogen is a popular theme, but whether projects have real offtake, power-cost conditions, order evidence and a closed cash-flow loop.
Nuclear
Nuclear includes plant operation, engineering construction, nuclear-island equipment, conventional-island equipment, fuel, maintenance and safety-control systems. Because projects have long cycles, company value depends on approvals, equipment delivery capability, quality systems and long-term operating cash flow.
Grid Equipment
Grid equipment supports main grids, ultra-high-voltage transmission, distribution networks, substations, smart meters, protection systems and digital dispatch. Renewable integration and grid investment create demand, but order quality, payment cycles and technical barriers differ sharply by company.
Energy Services
Energy services are closer to customers. They include efficiency retrofits, integrated energy management, carbon services, data-center energy services, green-power transactions and operation services. Revenue comes from service fees, project operation, energy-management gains and long-term contracts.
Advanced Materials
Advanced materials connect energy transition with batteries, solar, wind, insulation, flame-retardant systems and specialty polymers. Research should focus on customer qualification, grade-level barriers, order quality, raw-material prices and downstream demand rather than broad material concepts.
How to read upstream and downstream links
A practical value-chain view separates upstream inputs, midstream manufacturing or integration, downstream customers, equipment suppliers, service providers and integrated platforms. This makes it easier to answer four questions: who pays, who delivers, who carries the risk and who keeps the profit.
If a company only announces a strategy but has no orders, projects, customers, revenue or disclosed operating evidence, it should not be treated as a company with proven earnings exposure. If it has stable customers, traceable revenue and real cash flow, it deserves more weight in company screening and research.
How to use CNWattHub
Start with the company database to filter by sector and value-chain position, then use rankings to identify key companies. Daily briefings help track market, policy, price and value-chain changes, while deep-dive research explains profit sources, order evidence, cash-flow quality and risk exposure in specific themes.