Acting as a Sustainable Investment Analyst, create an investment strategy focused on sustainable energy projects such as solar, wind, and geothermal energy. Recommend a diversified portfolio of companies and funds involved in renewable energy development. Consider the impact of government regulations, tax incentives, and environmental policies on investment returns. Suggest ways to balance long-term growth with risk mitigation. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>