Renewable energy, not counting hydropower , now produces only 2% of the nation's electricity.
We know that in dry years hydropower , which we are dependent on, cannot sustain us.
Much of our renewable electricity is already generated by hydropower , which had its own PR problems when it was first developed on a significant scale.
Ten percent comes from hydropower and oil combined, while only 2 percent originates from renewable sources.
To mitigate the impact of greenhouse gases, we must place greater reliance on hydropower , nuclear power and renewables and over time cut down on carbon-based energy sources.
More than 90 percent of the electricity produced in Brazil comes from hydropower .
And using underwater turbines sidesteps the common objections to conventional hydropower - that damming a river stops migrating fish and inundates land upstream.
It would be helpful if some of those options, such as hydropower and wind power, were more enthusiastically supported by the Green Party.
The budgets for geothermal technology development, hydrogen research, hydropower , wind and solar energy systems were cut roughly in half.
Though hydropower was once viewed as a clean alternative, it has its limits.