Can a solar-wind system meet future energy demands?

Accelerating energy transition towards renewables is central to net-zero emissions. However, building a global power system dominated by solar and wind energy presents immense challenges. Here, we demonstrate the potential of a globally interconnected solar-wind system to meet future electricity demands.

How can wind and solar power achieve a 'double carbon' goal?

However, wind and solar power are generally characterized by randomness and volatility [3, 4], and how to ensure a stable operation of large-scale renewable energy systems and improve the efficiency of renewable energy consumption is the key to achieving the goal of “double carbon” .

How does solar-wind generation affect the cost of a solar system?

High penetration of solar-wind generation is invariably associated with increased curtailments and system-wide costs, with pronounced marginal cost effects. For instance, the cost increase required to raise penetration from 78% to 80% is more than four times that of raising it from 72% to 75%.

How does interconnectivity affect solar-wind development?

As the degree of interconnectivity increases, solar-wind development gradually shifts towards regions with distinct resource advantages, such as the midwestern United States for superior solar resources, and coastal or high-altitude areas for high wind energy potential (Fig. 2a, b).

What happens if solar-wind generation exceeds net power demand?

When solar-wind generation within a grid exceeds its net power demand (i.e., total demand minus baseload), surplus power is first transferred to interconnected grids experiencing shortages, with the remaining surplus stored until capacity is reached. Any surplus beyond storage capacity is curtailed.

Can large-scale wind–solar storage systems consider hybrid storage multi-energy synergy?

To this end, this paper proposes a robust optimization method for large-scale wind–solar storage systems considering hybrid storage multi-energy synergy. Firstly, the robust operation model of large-scale wind–solar storage systems considering hybrid energy storage is built.