Energy giant Shell has signed a deal to become the largest shareholder of US solar project developer, owner, and operator, Ranch Silicon – a clear sign that Shell is committed to its pledge of spending $1bn a year on its renewable strategy, as big oil & gas companies make tentative moves towards their renewable transitions. Under the deal, Shell will acquire a 43% stake in the Nashville based company, the shares will be acquired from Partners Group, an investment manager. The deal is valued at $217m, based on Silicon Ranch’s performance. Shell can increase its stake after 2021. The transaction is expected to close in this quarter, following regulatory approval. Shell is returning to the solar market after a 12-year…