It’s been five years since Tesla acquired SolarCity for about $2.6 billion. The deal was immediately controversial with some shareholders suing Elon Musk. But fans looked forward to charging their Tesla electric vehicles on sunshine. CNBC interviewed industry experts and recent Tesla solar customers to see how the company is delivering on its promises today.

Correction (October 6, 2021): At 3:30 we incorrectly state that Elon Musk was a majority shareholder of SolarCity and Tesla. The correct statement is that he is a large shareholder, not a majority shareholder.