News: Photovoltaics
11 September 2026
Midsummer to form JV with Indonesia’s Metalogika
Midsummer AB of Järfälla, near Stockholm, Sweden and Indonesian technology industrial company PT Metalogika Rekayasa Sistem have signed a binding investment and industrialization framework agreement for the establishment of a manufacturing platform in Indonesia for Midsummer’s lightweight, flexible copper indium gallium diselenide (CIGS) thin-film solar cell and photovoltaic module technology.
PT Metalogika intends to establish a thin-film flexible solar panel production facility in Indonesia with an initial production capacity of 20MW per year, with potential further expansion toward 200MW annually, for the sale of solar panels in the Indonesian market and abroad.
Midsummer will supply the manufacturing equipment and related services for the establishment and operations of the solar cell factory to the new joint venture, and also assume a minority ownership in the Indonesian joint venture.
Initial investment package for 20MW/year facility
The range of equipment that is currently contemplated consists of Midsummer’s proprietary DUO system for the production of thin-film solar cells, other manufacturing equipment and services sufficient for a 20MW per year solar cell factory.
Equipment procurement will be entered into by the Indonesian joint venture following its incorporation and satisfaction of the agreed conditions. This structure is intended, among other things, to allow the project to establish the appropriate Indonesian investment and import framework before manufacturing equipment is imported.
Scalable roadmap toward 200MW and beyond
The initial 20MW facility is intended as the first phase of a broader industrial roadmap. Following commissioning and operation, the parties intend to evaluate expansion toward 200MW of annual production capacity, with longer-term potential for further expansion toward gigawatt scale, subject to market demand, financing, operational performance and future investment decisions.
The strategic ambition is to develop Indonesia into an important manufacturing node within Midsummer’s geographically distributed production ecosystem, initially serving Indonesia and progressively supporting opportunities in Southeast Asia and other markets.
Validation of technology and strategic offering
“Our ambition is to build a long-term industrial partnership in Indonesia, combining Midsummer’s technology and manufacturing experience with Metalogika’s Indonesian industrial capabilities,” says Midsummer’s CEO Eric Jaremalm. “We intend to start with a clearly defined 20MW industrial project, while creating the foundation from which the partnership can scale significantly as the market develops,” he adds. “I see this as another validation of Midsummer’s technology and of our strategy to offer partners not only equipment and solar products but access to a complete industrial manufacturing platform — technology, know-how, engineering, training, procurement and long-term production support.”
Picture: Midsummer’s CEO Eric Jaremalm (left) and Metalogika’s president director Firrisky Nurtomo (right) signing the collaboration agreement in Jakarta.
Pathway toward significantly greater Indonesian manufacturing capacity
“Our objective is to establish advanced solar manufacturing capability in Indonesia and progressively build a locally anchored industrial ecosystem around it,” says PT Metalogika Rekayasa Sistem’s president director Firrisky Nurtomo. “One of the nearest aims is to support the country’s focus to strengthen energy independence and security. Midsummer brings not only manufacturing technology but experience, know-how and access to a wider international production ecosystem,” he adds.
“The initial facility gives us a practical starting point while the longer-term roadmap provides a pathway toward significantly greater Indonesian manufacturing capacity with local components to serve the region potential market. In line with the recently launched US$73bn program by President Prabowo Subianto to build 100GWp of solar power capacity across the country and the electrification of 80,000 rural areas.”
Massive solar energy potential
The parties will now proceed with incorporation of the joint venture, finalization of the investment and governance structure, applicable Indonesian approvals and incentives, project financing and definitive equipment and technology agreements.
Indonesia has a population of about 285 million. It is the largest economy in Southeast Asia with a gross domestic product exceeding US$1.4 trillion and growing at 4-5% per year. Indonesia’s energy mix is heavily reliant on fossil fuels, with renewable energy sources making up about 18% of the power generation mix. Located directly on the equator, Indonesia has massive solar energy potential, backed by a very high daily solar radiation average and government ambitions for a rapid scale-up of solar energy production.
Midsummer receives US$14.8m order for CIGS PV production line
