Best renewable energy stocks to buy in 2021

Companies leading the charge to find alternative forms of energy are some of the hottest businesses around. Here, our experts pick their top five renewable energy companies to invest in this year.
By: James Knight
James Knight
When he isn’t at work, James is an avid trader and golfer who likes to travel. He once fed, rode, and… read more.
Updated: May 28, 2021
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We’ve analysed the markets to find the renewable energy stocks we’re most excited by at the moment. This page includes our top five picks to invest in along with some help on how to find your own.

What are the top renewable energy stocks to buy in 2021?

This is our list of the best renewables stocks, ranked in order of their future potential. Use the links in the table to find their latest price, or scroll down for more information on why we chose each one.

#Stock symbolCompany name
1CSIQCanadian Solar Inc.
2SPWRSunPower Corporation
3DQDaqo New Energy Corp.
4PLUGPlug Power Inc.
5SOLReneSola Ltd.

1. Canadian Solar Inc. (NASDAQ: CSIQ)

Canadian Solar makes solar panels that convert sunlight into electricity. Headquartered in Canada, it has installed power plants across North America, Europe, and Asia that run on solar energy.

Solar stocks took off in 2020 and Canadian Solar was no different, with its share price climbing 200% across the year. Along with growing investor appetite for renewable energy, there were real results as well: a record number of solar panels installed, and grid outages convincing more people to add their own solar-powered generators at home.

CSIQ earns top spot here because the outlook remains rosy, not least because the Biden administration is much more focused on green energy than its predecessor and has added incentives into its major infrastructure bill. Despite its growth so far, Canadian Solar is available relatively cheaply and still has room to grow.

 2. SunPower Corporation (NASDAQ: SPWR)

SunPower is a US-based company that sells solar panels to residential and commercial customers. It also sells energy management software, again targeted at home and office owners.

Initially a solar panel manufacturer as well, SunPower spun off its manufacturing wing in August 2020. That decision to focus on software and sales, two high-growth areas, sent its share price up 600% by the end of the year.

Although it has fallen back a bit since then, SunPower is leaning into its new, slimmed-down, frame, which is what has it second on this list. Its new CEO wants to make buying solar panels as easy as ordering from Amazon, and there is a huge, untapped market for them – only 3% of homes in America have solar panels right now. 

 3. Daqo New Energy Corp. (NYSE: DQ)

Daqo New Energy is a Chinese company that manufactures polysilicon – metal parts that help build solar panels. 

Demand for polysilicon has exploded over the last year, as the clean energy revolution gathers pace. Driven by these attempts to create alternative sources of power, Daqo’s shares increased by an eye-watering 1,000% in 13 months between January 2020 and February 2021.

Even if that sort of rise is – obviously – not sustainable, the demand for solar panels is. Like semiconductor chip manufacturers who play a vital, if lesser-known, role in computing, producing the vital hardware during a boom in renewable energy could be big business for Daqo moving forward.

4. Plug Power Inc. (NASDAQ: PLUG)

Plug Power develops hydrogen fuel cells, which are clean alternatives to battery power and can be used in cars and power plants. Formed in 1997, it actually hit massive highs during the dot com bubble and fell back to plugging along slowly until the renewables boom hit in 2020.

Like every other company on this list, that boom sent its share price flying again. It was up 1,500% in a year, most of which came after Joe Biden won the presidential election in November. The expectation of a much more green-friendly political scene was enough for investors to pile in.

There have been a few setbacks since then, and the price is still based on potential rather than hard results. But Plug Power is on this list because it has already struck deals with companies like Renault to supply the fuel cells for its cars. Major deals like that are proof that the demand for its technology is there.

5. ReneSola Ltd. (NYSE: SOL)

ReneSola is a Chinese company that’s listed in the United States, and operates like a project manager of solar energy infrastructure developments. It focuses on financing and managing green energy projects in the US and Europe.

Once again, it’s shares took off after the election results, going up 500% in a month between December 2020 and January 2021. Since then, there has been a bit of a tail-off, but that is more likely to be investors taking a profit rather than any statement on the underlying business.

That business is doing well. It essentially manages infrastructure projects and sells them on once they’re complete, and it expects to have doubled the amount in late stage development by the end of 2021, compared to a year earlier. Its stock can be a rollercoaster, but ReneSola is churning out solar power at a relentless rate.

Where to buy the best renewable energy shares

You can use the brokers below if you want to dive in and get your stocks now. Our team of financial experts have reviewed all of the leading platforms to pick out the best ones, and all of the ones in our list are bursting with features to help you invest.

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eToro is a multi-asset investment platform with more than 2000 assets, including FX, stocks, ETF’s, indices and commodities. eToro users can connect with, learn from, and copy or get copied by other users. Buying stocks on eToro is free and you can invest with as little as $50.
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CedarFX is an eco-conscious broker offering 0% commission trading on 170+ assets, including Forex, Cryptocurrency Pairs, Stocks, Indices and Commodities. With up to 1:500 leverage, no-fee transactions and low spreads, traders can make the most of their funds. CedarFX also offers an Eco Account option to support tree planting and sustainability projects.
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Financial company driven by technology and offering all-in-one self-directed investment platform that provides excellent user experience.
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What is a renewable energy stock?

Any company that is involved in researching, manufacturing, or selling alternative energy sources. That means any business that’s involved in solar energy, wind power, or hydroelectricity counts as a renewable energy stock.

Are renewable energy shares a good investment?

It certainly looks like it, with people across the world becoming more eager to find alternative sources of energy to ward off the danger of climate change. Shares in companies that provide clean energy have been volatile over the past year, but there’s no doubt the demand for their products exists.

As with any tech stock, picking the right companies to invest in is the challenge. The industry suits both short term traders who are looking to find bargains with the potential to boom, and those with longer horizons who think this technology is the future.

Both methods carry an element of risk, and you should be prepared to see big swings in the value of these stocks. Often, those swings are based on expectation or hype that comes out of a news event – like the US presidential election. You can follow the latest news below to make sure you don’t miss out on anything.

Latest renewable energy news

TC Energy Corporation (NYSE: TRP) has finally decided to halt the Keystone XL pipeline project after U.S. Joe Biden revoked the permit needed to complete the U.S. stretch of the pipeline earlier this year. In a press release on Wednesday, the company said it “will continue to coordinate…
The activist investment firm Engine No. 1 has won the third seat on the Board of Directors at Exxon Mobil Corporation (NYSE: XOM) after gaining two board seats at Exxon’s annual shareholder meeting on May 26. Shares of the oil and gas giant are relatively flat in premarket trading.
Shares of Exxon Mobil Corp (NYSE:XOM) ended lower last week to trade at around $58.35. The stock is now down more than 6.7% over the last three weeks. However, after the recent surge in oil prices, there is a growing optimism of a potential rebound in…
The activist investment firm, Engine No. 1, has been piling pressure on Exxon Mobil Corporation for the past few months to embrace a transition to a low-carbon world and accept its demand for four board seats. The ongoing proxy battle could come to a close today when the shareholders of…
Crude oil price has eased ahead of EIA’s oil inventory data on Wednesday. WTI futures are down by 0.33% at $65.77 while Brent futures are down by 0.35% at $68.27. According to Goldman Sachs’ Jeff Currie, the price will surge to $80 in the current year. Iranian oil expected…
Joseph Blunt, CEO of Colonial Pipeline Co. told Wall Street Journal that the company had first discovered the hack at around 5:30 a.m. on May 7 and had decided by the night that they had to pay a $4.4 million ransom. What played into the decision to pay? Colonial…
James Knight
Financial writer
When he isn’t at work, James is an avid trader and golfer who likes to travel. He once fed, rode, and ate an ostrich all on… read more.