We recommend an exciting and brand-new type of energy play, one that offers investors not just the promise of long-term double-digit growth but high and growing levels of income as well. And no, it has nothing to do with fracking (see below). Rather, it belongs to a whole new class of companies focused on renewable energies and dedicated to providing investors with sharply growing dividends.

These companies—dubbed “yield cos”—resemble Master Limited Partnerships (MLPs) in that they entail a limited partner that distributes or sells assets to the company and a mandate to pay out the lion’s share of the cash flow from these assets as dividends. Unlike MLPs, the dividends are taxed—but this is overwhelmingly made up for by yield cos’ enormous potential for burgeoning growth, while in the process helping make the U.S. truly energy independent.

Our favorite is Pattern Energy Group (PEGI), which right now focuses exclusively on wind energy. Its limited partner has seeded the company with projects in North America and Chile. The company currently yields about 4.5 percent, and we expect double-digit increases in dividends through at least the end of the decade. The company’s LP will continue “dropping down” projects to Pattern Energy, which Pattern Energy will pay for via the 20 percent or so of its funds not allocated to dividends or by issuing additional shares. As long as the underlying fundamentals of wind energy remain strong, growth for Pattern Energy is assured.

And wind energy, we’re confident, will win big long term. Even the reliably oil-friendly International Energy Association concurs. It projects that between now and 2035, electricity from wind will account for 50 percent of global electricity growth. That translates into long-term (more than a generation) real unit growth of nearly 9 percent.

To put that number in perspective, the fastest-growing retailers, even in the early days of their headiest growth, rarely can maintain double-digit unit growth for more than a few years. Now assume an inflation rate of several percent, and, taking our word that Pattern Energy is one of the best of the bunch, its long-term growth—meaning over a decade or two—could easily exceed 15 percent.

One reason Pattern Energy stands out is its savvy ownership and management. Its CEO is Michael Garland, one of the country’s most seasoned infrastructure executives, and the limited partner is controlled by two top energy private equity firms, Riverstone Holdings and Carlyle Group.

To sum up: Pattern Energy will pay you a solid and sharply rising income to place a bet in which the odds are dramatically in your favor.