8 Benefits of Renewable Energy, From Cleaner Air to Cheaper Power

Over 90% of new renewable power projects now cost less than the fossil fuel option.

That figure comes from the United Nations, and it flips the old idea that sustainable energy is the expensive choice.

So the benefits of renewable energy go well past the planet now. Below are 8 of them, each with the evidence behind it and what it means for you.

What Counts as Renewable Energy?

Renewable energy is power from sources nature refills on its own, so they don’t run out the way coal, oil and natural gas do. The US Environmental Protection Agency (EPA) lists the main types: solar, wind, biogas, geothermal, biomass and low-impact hydroelectricity.

Wave and tidal power are still emerging. Biogas, if you haven’t met it, is gas from rotting waste, like the gas captured at landfills and sewage plants.

The short version of why they count as renewable is simple: each source refills faster than you can use it up. That idea sits at the center of clean energy as a whole.

The 8 Benefits of Renewable Energy

Renewable energy cuts air pollution and greenhouse gas emissions, lowers the cost of new power and creates jobs, according to the EPA and the United Nations. Countries that use more of it also depend less on imported fuel.

Each benefit below comes with the figure or source behind it.

1. Cheaper Electricity From New Projects

Renewable energy is now the cheapest way to build new power in most of the world.

Over 90% of new renewable projects cost less than the fossil fuel option, according to the United Nations. Solar alone comes in 41% cheaper than fossil fuels.

Why does that matter to you?

Thermal power plants that burn coal or natural gas pay for fuel every day they run. Sunlight and wind are free, so most of the price of that electricity generation is the equipment itself.

That’s why the UN calls renewables the most affordable source of power today. The gap is easy to see in a side-by-side of solar vs fossil fuels, where solar also wins on emissions.

2. Cleaner Air and Healthier Lungs

Cleaner air is the benefit that saves the most lives.

About 99% of people breathe air above safe limits, the UN reports, citing the World Health Organization. Air pollution is tied to 7 million early deaths a year.

Most of that pollution, like fine particulate matter and nitrogen dioxide, comes from burning fossil fuels. And the damage has a price tag: $8.1 trillion a year, or 6.1% of global GDP.

That’s huge.

Closer to home, a US shift to clean energy would save more than $800 billion a year in public health costs. That’s from a Union of Concerned Scientists study published in November 2023.

Every coal or gas plant that wind and solar replace is one less source of the pollution behind those costs.

3. Far Fewer Greenhouse Gas Emissions

Solar power and wind power make electricity without burning anything, so they produce no greenhouse gas emissions from fossil fuels while they run. The EPA lists that as the first benefit of renewable energy, along with less air pollution.

The same UCS study put a number on the climate side: nearly $1.3 trillion in avoided climate damages by 2050. In other words, cutting carbon dioxide isn’t just an environmental win, it’s money the country doesn’t spend recovering from climate change.

Rooftop photovoltaic (PV) solar panels are the easiest way to claim this benefit yourself, and the environmental benefits of solar start the day a system switches on.

4. Millions of Jobs

In 2023, renewable energy gave 16.2 million people a job, up from 13.7 million the year before, the UN reports. Clean energy jobs as a whole, almost 35 million, already outnumber fossil fuel jobs.

Here’s the part most people miss:

Each dollar invested in renewable energy creates 3 times as many jobs as the same dollar spent on fossil fuels.

The EPA links renewable energy to job creation and economic development in US towns, from factory work to installation. And plenty of solar industry jobs don’t require a college degree, so the door is open to a lot of people.

5. Energy Independence

Renewable energy cuts a country’s dependence on imported fuel, because nobody can ship, block or embargo sunlight and wind. About 80% of the world’s population, roughly 6 billion people, live in countries that import more fossil fuel than they produce, the UN reports.

That leaves them exposed to wars, trade fights and supply shocks they can’t control. This is what experts mean by energy security: having enough power that you control, at prices that don’t swing with world events.

The EPA lists the same benefit for US towns and cities: a more diverse energy supply and less reliance on imported fuels.

6. Steadier Energy Costs

Renewable energy shields you from fuel price spikes, because a solar panel or wind turbine has no fuel bill to rise. The UN notes that renewables protect countries from the unpredictable price swings of fossil fuels.

So if natural gas prices jump, the power coming off your own panels costs the same as it did last month.

The EPA puts it in money terms: on-site renewable projects act as a hedge against financial risks.

A hedge is just a way to lock in part of your costs, so a bad year hurts less. It’s one of the financial benefits of solar panels to weigh before you buy.

7. More Reliable Power Where You Use It

Power made on-site is better quality and more reliable, the EPA says. That’s because the power is made right where you use it.

And with part of your power coming off your own roof, a problem elsewhere on the grid matters less.

Energy storage is what turns that into real backup. Pair panels with one of the better solar storage batteries and your home can keep running at night or when the grid goes down.

8. A Supply That Never Runs Out

Renewable energy can’t be used up, because sunlight, wind, flowing water and the Earth’s heat keep coming back on their own. A coal seam or oil field, by contrast, is gone once it’s burned.

The UN adds that renewable sources are available in every country and still haven’t been fully tapped. That’s a big deal for the long run: the more electricity demand grows, the more that untapped supply is worth.

Renewable Energy Benefits at a Glance

Here’s each benefit with its headline fact and the source behind it:

Notice how often health and money show up in that table. Most of these benefits pay people back directly, not just the planet.

What Renewable Energy Means for Your Home

For a homeowner, the two biggest benefits of renewable energy are steadier bills and more reliable power. A rooftop solar system is exactly the kind of on-site project the EPA describes.

You also shrink your carbon footprint, your own share of the emissions and air pollution covered in #2 and #3.

The catch? Those benefits depend on your roof, your sun and your local power rates.

So start by checking whether solar panels are worth it where you live.

Then learn how solar panels work from the roof to your breaker panel. That makes it easier to size a system for the things you want to keep running.

The Downsides of Renewable Energy

Renewable energy has 3 main drawbacks: solar and wind output changes with the weather, storage adds cost, and projects cost more upfront. None of these cancel out the benefits, but they decide where renewables work best.

The full list of renewable energy downsides walks through each one with the fixes. For both sides together, the pros and cons of solar lay out the trade-offs in one place.

And if solar doesn’t suit your site, it’s worth comparing the other alternatives to solar power before you rule renewables out.