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Compare · NRG vs OPTT

NRG vs OPTT

Side-by-side comparison of NRG Energy Inc. (NRG) and Ocean Power Technologies Inc. (OPTT): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both NRG and OPTT operate in Electric Utilities: Central (Utilities), so they compete in similar markets.
  • NRG is the larger of the two at $29.31B, about 499.6x OPTT ($58.7M).
  • Over the past year, NRG is down 9.4% and OPTT is down 43.8% - NRG leads by 34.4 points.
  • NRG has been more active in the news (14 items in the past 4 weeks vs 6 for OPTT).
  • NRG has more recent analyst coverage (25 ratings vs 2 for OPTT).
PerformanceNRG-9.45%OPTT-43.84%
2025-06-23+0.00%2026-06-23
MetricNRGOPTT
Company
NRG Energy Inc.
Ocean Power Technologies Inc.
Price
$137.64-0.86%
$0.28-2.15%
Market cap
$29.31B
$58.7M
1M return
+0.55%
-17.88%
1Y return
-9.45%
-43.84%
Industry
Electric Utilities: Central
Electric Utilities: Central
Exchange
NYSE
NASDAQ
IPO
2007
News (4w)
14
6
Recent ratings
25
2
NRG

NRG Energy Inc.

NRG Energy, Inc., together with its subsidiaries, operates as an integrated power company in the United States. It operates through Texas, East, and West. The company is involved in the producing, selling, and delivering electricity and related products and services to 3.6 million residential, industrial, and commercial consumers. It generates electricity using natural gas, coal, oil, solar, nuclear, and battery storage. The company also provides system power, distributed generation, renewable products, backup generation, storage and distributed solar, demand response, energy efficiency, advisory, and on-site energy solutions; and carbon management and specialty services. In addition, it trades in electric power, natural gas, and related commodities; environmental products; weather products; and financial products, including forwards, futures, options, and swaps. Further, the company procures fuels; provides transportation services; and directly sells energy, services, and products and services to retail customers under the NRG, Reliant, Green Mountain Energy, Stream, XOOM Energy, and other brand names. As of December 31, 2020, it owns power generation portfolio with approximately 23,000 megawatts of capacity at 33 plants. NRG Energy, Inc. was founded in 1989 and is headquartered in Princeton, New Jersey.

OPTT

Ocean Power Technologies Inc.

Ocean Power Technologies, Inc. develops and commercializes proprietary systems that generate electricity by harnessing the renewable energy of ocean waves in North and South America, Europe, and Asia. It offers PB3 PowerBuoy system that generates power for use independent of the power grid in remote offshore locations. The company also provides hybrid PowerBuoy products; subsea battery systems; and payloads, integration services, and marine installation services. In addition, it offers electric power and real-time data communications for remote offshore and subsea applications in markets, such as offshore oil and gas, defense and security, science and research, and communications. The company serves public and private entities, and agencies that require remote offshore power. Ocean Power Technologies, Inc. was founded in 1984 and is headquartered in Monroe Township, New Jersey.

Latest NRG

Latest OPTT