This article fully explores the differences and complementarities of various types of wind-solar-hydro-thermal-storage power sources, a hierarchical environmental and economic dispatch model for the power system has been established. . Hybrid systems are complementaryeven complementary,called imperfect complementarity. The combination of Wind and solar power can effectively meet the energy demand of the Brazilian Northeast region, reducing the dependency on hydroelectricity and thermoelectric plants. Future research will focus on stochastic modeling and incorporating energy storage systems. At present, the level of new energy consumption needs to be improved, the coordination of the source network load storage link is insufficient, and the. . In our pursuit of a globally interconnected solar-wind system, we have focused solely on the potentials that are exploitable, accessible, and interconnectable (see "Methods").
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Do wind and solar energy resources need more flexible resources?
In the context of energy conservation and emission reduction, the integration and consumption of large-scale wind and solar resources is an inevitable trend in future energy development. However, with the increase of wind and solar grid-connected capacity, the power system also requires more flexible resources to ensure safe operation.
Are pumped storage power stations a viable alternative to traditional energy systems?
The joint operation of wind, solar, water, and thermal power based on pumped storage power stations is not only a supplement and improvement to traditional energy systems but also a crucial step towards a cleaner, more efficient, and more sustainable energy future.
How does a solar power system work?
Its strong regulation capability, combined with the random fluctuations of wind and solar power, forms a complementary system that outputs relatively smooth and stable high-quality power, effectively solving the challenges of wind and solar energy development (Bello et al., 2023).
Should wind power be relying solely on thermal power?
When the penetration rate of wind power increases to a certain extent, relying solely on thermal power to cope with the uncertainty of wind and solar output will lead to frequent starting and stopping of thermal power units, threatening the safety, stability, and economy of the power grid operation (Ye et al., 2023).