Panasonic Holdings Corporation is a Japanese multinational electronics company, headquartered in Kadoma, Osaka, Japan. It was founded in 1918 as Matsushita Electric Housewares Manufacturing Works in Fukushima, Osaka by Kōnosuke Matsushita. In 1935, it was incorporated and renamed Matsushita Electric Industrial Co., Ltd. In 2008, it changed its name to Panasonic Corporation. In 2022, it became a holding company and was renamed.
A solar inverter or photovoltaic (PV) inverter is a type of power inverter which converts the variable direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network. It is a critical balance of system (BOS)–component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar power inverters have special functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection.
Energy Conversion Devices, Inc. (ECD) was an American photovoltaics manufacturer of thin-film solar cells made of amorphous silicon used in flexible laminates and in building-integrated photovoltaics. The company was also a manufacturer of rechargeable batteries and other renewable energy related products. ECD was headquartered in Rochester Hills, Michigan.
A virtual power plant (VPP) is a system that integrates multiple, possibly heterogeneous, power resources to provide grid power. A VPP typically sells its output to an electric utility. VPPs allow energy resources that are individually too small to be of interest to a utility to aggregate and market their power. As of 2024, VPPs operated in the United States, Europe, and Australia.
Tesla, Inc. is an American multinational automotive and clean energy company. Headquartered in Austin, Texas, it designs, manufactures and sells battery electric vehicles (BEVs), stationary battery energy storage devices from home to grid-scale, solar panels and solar shingles, and related products and services.
Solar shingles, also called photovoltaic shingles, are solar panels designed to look like and function as conventional roofing materials, such as asphalt shingle or slate, while also producing electricity. Solar shingles are a type of solar energy solution known as building-integrated photovoltaics (BIPV).
A photovoltaic system, also called a PV system or solar power system, is an electric power system designed to supply usable solar power by means of photovoltaics. It consists of an arrangement of several components, including solar panels to absorb and convert sunlight into electricity, a solar inverter to convert the output from direct to alternating current, as well as mounting, cabling, and other electrical accessories to set up a working system. Many utility-scale PV systems use tracking systems that follow the sun's daily path across the sky to generate more electricity than fixed-mounted systems.
SolarCity Corporation was a publicly traded company headquartered in Fremont, California, that sold and installed solar energy generation systems as well as other related products and services to residential, commercial, and industrial customers. The company was founded on July 4, 2006, by Peter and Lyndon Rive, the cousins of SpaceX and Tesla CEO Elon Musk. Tesla acquired SolarCity in 2016, at a cost of approximately US$2.6 billion and reorganized its solar business into Tesla Energy.
Sunrun Inc. is an American provider of photovoltaic systems and battery energy storage products, primarily for residential customers. The company was established in 2007 and is headquartered in San Francisco, California.
SMA Solar Technology AG is a German solar energy equipment supplier founded in 1981 and headquartered in Niestetal, Northern Hesse, Germany. SMA is a producer and manufacturer of solar inverters for photovoltaics systems with grid connection, off-grid power supply and backup operations.
The energy sector in Hawaii has rapidly adopted solar power due to the high costs of electricity, and good solar resources, and has one of the highest per capita rates of solar power in the United States. Hawaii's imported energy costs, mostly for imported petroleum and coal, are three to four times higher than the mainland, so Hawaii has motivation to become one of the highest users of solar energy. Hawaii was the first state in the United States to reach grid parity for photovoltaics. Its tropical location provides abundant ambient energy.
Vivint Solar was an American provider of photovoltaic solar energy generation systems, primarily for residential customers. The company was established in 2011 as an offshoot of home automation and security company Vivint and was headquartered in Lehi, Utah. The company primarily used a power purchase agreement (PPA) business model where Vivint Solar installed and maintained a solar system on a customer's home, then sold power to the customer at an agreed upon rate for a set term. In 2020, the company was purchased by Sunrun, another solar company primarily focused on the PPA business model for $3.2 billion.
Tigo Energy is an American private corporation, headquartered in Campbell, California, United States. It provides products, technologies, software, and services to installers, distributors, and original equipment manufacturers within the photovoltaic industry. It specializes in module-level power optimizers and smart module power electronics.
Enphase Energy, Inc. is an American energy technology company headquartered in Fremont, California, that develops and manufactures solar micro-inverters, battery energy storage, and EV charging stations primarily for residential customers. Enphase was established in 2006 and is the first company to successfully commercialize the solar micro-inverter, which converts the direct current (DC) power generated by a solar panel into grid-compatible alternating current (AC) for use or export. The company has shipped more than 48 million microinverters to 2.5 million solar systems in more than 140 countries.
The Tesla Powerwall is a rechargeable lithium-ion battery stationary home energy storage product manufactured by Tesla Energy. The Powerwall stores electricity for solar self-consumption, time of use load shifting, and backup power.
Tesla Energy Operations, Inc. is the clean energy division of Tesla, Incorporated that develops, manufactures, sells and installs photovoltaic solar energy generation systems, battery energy storage products and other related products and services to residential, commercial and industrial customers.
The Tesla Powerpack was a rechargeable lithium-ion battery stationary energy storage product, intended for use by businesses or on smaller projects from power utilities. The device was manufactured by Tesla Energy, the clean energy subsidiary of Tesla, Inc. The Powerpack stores electricity for time of use load shifting, backup power, demand response, microgrids, renewable energy integration, frequency regulation, and voltage control. The first prototype Powerpacks were installed in 2012 at the locations of a few industrial customers. After July 22, 2022, the product was no longer listed for sale.
Exergonix Inc is an energy storage company based in Kansas City, Missouri. It was founded in 2010, after spinning out of Kokam America, Inc., which was acquired by Dow Chemical Company in 2009. Exergonix develops grid energy storage to supply peak-shaving, demand management, and smart grid capabilities to the grid and microgrid.
sonnen GmbH is a company in the energy industry headquartered in Wildpoldsried in the district of Oberallgäu, Germany. It produces home energy storage systems for private households and small businesses. The company is considered the market leader in Germany and additional international markets. Moreover, it is the center of a community for supplying power from renewable energies.
The Tesla Megapack is a large-scale rechargeable lithium-ion battery stationary energy storage product, intended for use at battery storage power stations, manufactured by Tesla Energy, the energy subsidiary of Tesla, Inc.
US$1.96 billion (2021)
US$1.71 billion (2021)
