Elon Musk is the CEO and major shareholder of several companies, one of which is indeed involved in solar power. Musk is the CEO of Tesla, Inc., which acquired SolarCity in 2016.
SolarCity was a company that specialized in solar energy services. Elon Musk was chairman of SolarCity, and the company was founded by his cousins Lyndon and Peter Rive. SolarCity was at one point the largest residential solar installer in the United States.
Since the acquisition by Tesla, SolarCity's offerings have been integrated into Tesla's energy division. Tesla now offers solar panels and the Solar Roof for residential solar power generation, along with the Powerwall, Powerpack, and Megapack energy storage solutions. Musk's vision is to create an integrated sustainable energy solution where homes are powered by solar energy that charges batteries, which in turn power both the home and electric vehicles.
It's important to note that while Elon Musk is involved in solar energy through Tesla, he does not "own solar" in the sense of having a monopoly or exclusive rights over solar power or solar technology.
Who are the biggest gas turbine manufacturers?
Several companies are prominent in the field of gas turbine manufacturing. These companies have a global reach and are recognized for their technological innovations and the reliability of their products. Here are some of the biggest gas turbine manufacturers:
General Electric (GE): GE is one of the largest manufacturers of gas turbines in the world. They produce a wide range of turbines suitable for power generation and mechanical drive applications.
Siemens: Siemens Energy is another significant player in the gas turbine market. They offer a comprehensive portfolio of heavy-duty, industrial, and aeroderivative gas turbines for utilities, independent power producers, and industrial applications.
Mitsubishi Power: A subsidiary of Mitsubishi Heavy Industries, Mitsubishi Power produces a variety of gas turbines and is well-regarded for their high-efficiency models.
Solar Turbines: A subsidiary of Caterpillar Inc., Solar Turbines specializes in producing mid-range industrial gas turbines used in various industries including oil & gas, power generation, and more.
Rolls-Royce: Rolls-Royce's power systems division provides high-speed engines and propulsion systems for ships, power generation, heavy land, rail and defense vehicles, and the oil and gas industry. They offer a range of gas turbines under the Rolls-Royce and MTU brands.
Ansaldo Energia: An Italian power engineering company, Ansaldo Energia produces gas turbines for power generation in both industrial and aero derivative types.
MAN Energy Solutions: Based in Germany, MAN Energy Solutions produces a range of gas turbines and other power generation equipment.
It's worth mentioning that the specific ranking or market share of these companies can vary depending on the particular market segment (e.g., power generation, mechanical drive, aeroderivative turbines, etc.) and geographic region. Furthermore, the industry is subject to changes due to factors such as technological advancements, changes in energy policy, and shifts in the energy market.
What is the most efficient gas turbine?
One of the most efficient heavy-duty gas turbines on the market is the H-class turbine produced by manufacturers like General Electric (GE) and Siemens.
General Electric's 9HA/7HA series gas turbines, part of their HA (High Efficiency, Air-cooled) product line, have achieved more than 64% efficiency in combined cycle configuration. The GE 9HA.02, in particular, is one of the largest and most efficient gas turbines, boasting a power output of up to 592 MW in simple cycle operation.
Similarly, Siemens' SGT-8000H series, specifically the SGT5-8000H and SGT6-8000H models, have achieved more than 61% efficiency in combined cycle operation.
It's important to note that the efficiency of a gas turbine can be dependent on several factors including operating conditions, the configuration of the power plant (simple cycle vs combined cycle), and the specific model of the turbine. In a combined cycle configuration, the waste heat from the gas turbine is used to produce steam, which then drives a steam turbine to generate additional electricity, thereby increasing the overall efficiency of the power plant.
For the most current and accurate information, it's best to consult the manufacturers' websites or contact the companies directly, as advancements in technology may have led to more efficient models since my last training data in 2021.