What are the most effective solar energy hybrids that can effectively leverage its potential?

Solar energy is abundant, but the sun shines only during the day and even that is diminished during rainy days. One avenue to make solar energy and solar power more stable is to combine it with other forms of renewable energy - wind, biomass, geothermal etc. What innovative concepts and solutions can make diverse hybrids with solar energy work effectively, making the overall system a far more reliable energy source?

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