At the same time, rising oil and gas prices have underscored the need to find an alternative solution to fossil fuels.

Aside from McDonald, Tem’s founding team includes chief technology officer Bartlomiej Szostek, chief commercial officer Jason Stocks, and Ross McKay. All three met at a startup called Limejump that used big data to disrupt the U.K. energy market, and that was where the seed for Tem was sown.