The stock is currently down around 68% as investors gauge the risk that Sunnova is headed for bankruptcy, a frequent outcome for companies that issue such warnings. In a bid to stave off insolvency, Sunnova said Monday it is planning to refinance debt, raise new debt, and cut expenses.

Sunnova , one of the country’s largest residential-solar companies, has warned investors that it may run out of money within the next 12 months. It’s a snapshot of a company struggling to maintain financial viability amid a punishing economic climate for rooftop-solar installers and financiers.

Another day, another big solar installer faces bankruptcy. This time, the latest company to face the "solar coaster" is Sunnova Energy International, which is looking down the barrel at a cash flow that's insufficient to meet its obligations and fund operations.