Coal & Natural Gas produce the highest CO2 emissions from electricity generation

Coal is the largest primary energy source for electricity generation in the US. Coal pollutes 19 times more than PV Solar, 39 times more than STE/CSP, 83 times more than Wind, 25 times more than Geothermal, 125 times more than Ocean-Power, 143 more than Hydro-Power, and 23 times more than Biomass. Source

98% of CO2 emissions in the electricity sector come from Coal & Natural Gas

In 2014, the electricity sector produced 2,043 million metric tons of CO2, which is about 38% of total U.S. energy-related CO2 emissions (5,404 million metric tons).
The air and water pollution caused by coal and natural gas facilities is linked to breathing problems, neurological damage, heart attacks, and cancer. The replacement of fossil fuels with renewable energy, could improve health throughout the population and reduce overall healthcare costs. The estimated health impact of fossil fuels in the U.S. is between $361.7 and $886.5 billions USD, or 2.5% and 6% of the U.S. GDP. Source

The U.S. still depends on Coal & Natural Gas for 66% of electricity generation

While the use of renewable energy has been growing the last 10 years, electric generation still depends heavily on Coal, Natural Gas, Nuclear, and Hydropower. A broader understanding of renewable energy is necessary to increase its use in the electricity sector. Stable energy prices and lower impact on our climate, our health, and our economy, are some of the many advantages renewable energy bring to our society. Source

U.S. energy consumption in 2014 was 98.46 Quadrillion BTU, or about 28,856 TeraWatts-hour

Each end-use sector plays a significant part in total energy consumption. Clean and efficient technology solutions should be used in each of these sectors. Boosting renewable energy in electricity generation would have positive impact on the residential and commercial sectors. Transportation would benefit greatly from biofuel, fuel-cell, and hydrid technologies. The industrial sector could be improved with different types of renewable energy technologies, including biomass. Source

Today, three renewable energy sources are cheaper than coal for electricity generation

In contrast to the volatile history of fossil fuel prices, renewable energy prices have been constantly dropping in the last 10 years.
The renewable energy industry also offers more job opportunities than the fossil fuel industry. Compared with fossil fuel technology, which is typically mechanized and capital-intensive, the renewable energy industry is more labor-intensive. This means that, on average, more jobs are created for each unit of electricity generated from renewable sources than from fossil fuels. Source

Renewable Energy Planner

Analyze scenarios with a diversified porfolio of energy sources to supply the U.S. electric demand.