As the presidential election draws near, the National Hydropower Association is urging those in the hydroelectric industry to let the candidates know hydropower will continue to be a vital part of America's energy future.

No matter who wins, NHA says, federal policies in support of hydropower -- including regulatory improvements, incentives, and research and development -- will be key in cementing hydro's place in the nation's energy portfolio.

NHA has prepared letter templates for both President Barack Obama (D) and Governor Mitt Romney (R), which are available via the organization's website.

To write a letter to President Obama, click here.

For Governor Romney, click here.

Advocacy for hydropower seems to be gaining support, as two pieces of hydroelectric regulatory legislation have been introduced before the U.S. House in recent months. The first, called the "Hydropower Regulatory Efficiency Act of 2012," passed the House with a unanimous vote in July.

A second act, called the "Saving our Dams and New Hydropower Development and Jobs Act," was introduced earlier this month.

Both would need presidential approval to be signed into law.