As the Q2 earnings season wraps, let’s dig into this quarter’s best and worst performers in the renewable energy industry, including American Superconductor (NASDAQ: AMSC) and its peers.

Renewable energy companies are buoyed by the secular trend of green energy that is upending traditional power generation. Those who innovate and evolve with this dynamic market can win share while those who continue to rely on legacy technologies can see diminishing demand, which includes headwinds from increasing regulation against “dirty” energy. Additionally, these companies are at the whim of economic cycles, as interest rates can impact the willingness to invest in renewable energy projects.

The 15 renewable energy stocks we track reported a satisfactory Q2. As a group, revenues beat analysts’ consensus estimates by 3.1% while next quarter’s revenue guidance was 7.9% below.

Amidst this news, share prices of the companies have had a rough stretch. On average, they are down 11.9% since the latest earnings results.

American Superconductor (NASDAQ: AMSC)

Founded in 1987, American Superconductor (NASDAQ: AMSC) has shifted from superconductor research to developing power systems, adapting to changing energy grid needs and naval technology requirements.

American Superconductor reported revenues of $94.07 million, up 30% year on year. This print exceeded analysts’ expectations by 9.2%. Despite the top-line beat, it was still a slower quarter for the company with a significant miss of analysts’ EPS estimates and EPS guidance for next quarter missing analysts’ expectations significantly.

"Our first quarter results mark a powerful start, pushing our quarterly revenue past $90 million with 30% year-over-year growth," said Daniel P. McGahn, Chairman, President, and CEO, AMSC.

The market seems disappointed with the results as the stock is down 12.5% since reporting and currently trades at $28.82.

Is now the time to buy American Superconductor? Access our full analysis of the earnings results here, it’s free.

Best Q2: Bloom Energy (NYSE: BE)

Working in stealth mode for eight years, Bloom Energy (NYSE: BE) designs, manufactures, and markets solid oxide fuel cell systems for on-site power generation.

Bloom Energy reported revenues of $1.07 billion, up 166% year on year, outperforming analysts’ expectations by 22.37%. The business had an incredible quarter with a beat of analysts’ EPS estimates and an impressive beat of analysts’ EBITDA estimates.

Bloom Energy scored the biggest analyst estimate beat, fastest revenue growth, and highest full-year guidance raise among its peers. The market seems happy with the results as the stock is up 22.37% since reporting. It currently trades at $212.13.

Is now the time to buy Bloom Energy? Access our full analysis of the earnings results here, it’s free.

Weakest Q2: Fluence Energy (NASDAQ: FLNC)

Pioneering the use of lithium-ion batteries for grid storage, Fluence (NASDAQ: FLNC) helps store renewable energy sources with battery systems.

Fluence Energy reported revenues of $649.8 million, up 7.9% year on year, falling short of analysts’ expectations by 18.8%. It was a disappointing quarter as it posted full-year revenue guidance missing analysts’ expectations significantly and full-year EBITDA guidance missing analysts’ expectations significantly.

Fluence Energy delivered the weakest performance against analyst estimates and weakest full-year guidance update of the whole group. As expected, the stock is down 26.6% since the results and currently trades at $10.45.

Read our full analysis of Fluence Energy’s results here.

Sunrun (NASDAQ: RUN)

Helping homeowners use solar energy to power their homes, Sunrun (NASDAQ: RUN) provides residential solar electricity, specializing in panel installation and leasing services.

Sunrun reported revenues of $870 million, up 52.8% year on year. This print topped analysts’ expectations by 19.2%. It was an incredible quarter as it also produced a beat of analysts’ EPS estimates and a solid beat of analysts’ ARR estimates.

The company added 20,979 customers to reach a total of 1.21 million. The stock is down 20.1% since reporting and currently trades at $8.39.

Read our full, actionable report on Sunrun here, it’s free.

Plug Power (NASDAQ: PLUG)

Powering forklifts for Walmart’s distribution centers, Plug Power (NASDAQ: PLUG) provides hydrogen fuel cells used to power electric motors.

Plug Power reported revenues of $178.3 million, up 2.5% year on year. This result surpassed analysts’ expectations by 5.6%. It was an exceptional quarter as it also logged EPS in line with analysts’ estimates.

The stock is down 1.2% since reporting and currently trades at $2.09.

Read our full, actionable report on Plug Power here, it’s free.

Market Update

Over the past year, investors have been forced to repeatedly answer the same question: what is the market’s biggest risk? The answer has changed several times, and each shift has reshaped market leadership.

Late in 2025 and early 2026, artificial intelligence became the market’s primary uncertainty. Investors questioned whether AI would erode software pricing power and weaken competitive moats as AI made it easier to replicate once-differentiated products.

By the spring, technology took a back seat to geopolitics. The U.S. conflict with Iran briefly became the market’s dominant narrative, raising concerns about oil prices, inflation, and global growth. But as energy markets remained orderly and fears of a prolonged supply disruption faded, investors quickly turned their focus back to fundamentals.

Want to invest in winners with rock-solid fundamentals? Check out our 9 Best Market-Beating Stocks and add them to your watchlist. These companies are poised for growth regardless of the political or macroeconomic climate.