Key Argument in Support of Solar Energy

In the following excerpt from an article about renewable energy, the author argues that governments should invest more in solar power technologies. The author states, "Solar energy technologies not only provide a cleaner alternative to fossil fuels, but they also create jobs and stimulate economic growth. While some critics argue that the initial investment is too high, the long-term benefits far outweigh these costs. Additionally, as solar technologies continue to advance, their efficiency and cost-effectiveness are improving, making them a viable option for energy generation in the future."

Based on the author's argument, what is a key reason for the potential rejection of solar energy that the author specifically addresses?