In a recent editorial discussing the role of renewable energy in national security, the author presents the argument that not only do renewable energy sources reduce dependence on foreign oil, but they also enhance energy resilience against potential cyberattacks on traditional energy infrastructure. The editorial cites various studies linking renewable energy deployment with lower energy costs and improved grid security. However, it acknowledges the initial high investment cost and the need for significant technological advancement to fully integrate these systems.
Based on this argument, evaluate the strengths and weaknesses of the author's claims regarding renewable energy's contributions to national security.