Expectations for solar are high under a Biden administration, says Lynn Jurich, CEO of the solar power company Sunrun. While Sunrun's stock price has quadrupled in the past year, Jurich faces not only high-profile competition but the complexities of a new-style energy utility and the vagaries of politics and policy in the most partisan environment in generations. Her touchstone – in a key lesson for entrepreneurs – is to focus on long-term trends that she believes are favorable. In the teeth of the pandemic, she spent $3 billion to buy up one of the other key industry players, doubling down on her commitment, and extending a scale advantage. From Sunrun's internal culture to the undulating energy marketplace, Jurich is both pivoting in search of opportunity and holding fast to central principles.