The world’s most successful investor knows a thing or two about making money, having amassed a personal fortune of $53.5bn through his Berkshire Hathaway holding company since 1965 — largely due to his legendary ability to spot undervalued assets that can deliver superb long-term profits.

In a burst of energy last year, Buffett accumulated a 1.27GW portfolio of utility-scale solar projects through his MidAmerican Energy Holdings Company, including what will be the world’s largest PV array, the 579MW (AC) Solar Star 1 and 2 in California; the 550MW (AC) Topaz, also in California; and 49% of Arizona’s 290MW (AC) Agua Caliente.