Bandung – Cave Mekar Group now runs rooftop solar power plants with a combined capacity of 1,946.47 kWp at the PT. Cave Sumber Berkat and Mekar Plastik factories. To date the rooftop solar has generated, and production has used, more than 4.5 GWh of clean electricity, making Cave Mekar Group one of the plastics manufacturers in Indonesia producing with solar power at industrial scale.
Inaugurated on 28 April 2025 at PT. Cave Sumber Berkat
The largest phase was inaugurated on 28 April 2025 at PT. Cave Sumber Berkat with an installed capacity of 1,350.18 kWp. The system supports energy efficiency, lowers carbon emissions and strengthens the company’s move to low-emission operations. With the rooftop solar at the Mekar Plastik factory, the group’s combined capacity reaches 1,946.47 kWp.
“This initiative is part of the company’s long-term strategy to run operations that are more responsible to the environment. We believe investment in renewable energy brings long-term benefits for both the business and the environment,” PT. Cave Sumber Berkat’s management said at the inauguration.
Rooftop solar in numbers
- 1,946.47 kWp combined rooftop solar capacity across Cave Mekar Group
- 1,350.18 kWp at PT. Cave Sumber Berkat, inaugurated 28 April 2025
- 4.5 GWh+ of solar electricity generated and used on site for production
- Estimated output at PT. Cave Sumber Berkat of about 2.07 GWh per year, roughly 1,626 tonnes of CO₂ avoided per year
Solar power and recycling in one system
Rooftop solar complements Cave Mekar Group’s circular commitment. Since 2003 the group has recycled more than 250 thousand tonnes of PP, PE and HDPE plastic on EREMA lines from Austria and turned it back into pellets for new products. With solar power, recycling and the production of bags, film, thinwall and cups now run with a lower carbon footprint.
For customers this means plastic packaging from factories that use renewable energy and recycled material, backed by ISO 9001 and the Recycled Claim Standard (RCS) at PT. Cave Sumber Berkat. Learn more on the Cave Mekar Group Circularity page.
What comes next
The inauguration is the start of the group’s long-term plan for measurable, data-driven sustainability. Cave Mekar Group will monitor the performance and environmental impact of its solar plants regularly and keep evaluating energy-efficiency opportunities across its other factories.
Rooftop solar FAQ
What is the rooftop solar capacity of Cave Mekar Group?
The combined rooftop solar capacity is 1,946.47 kWp, including 1,350.18 kWp at PT. Cave Sumber Berkat, inaugurated on 28 April 2025, and rooftop solar at the Mekar Plastik factory.
How much solar electricity has been generated?
More than 4.5 GWh of solar electricity has been generated and used directly for production at the group’s factories.
Is there a solar-powered plastics factory in Bandung?
Yes. The PT. Cave Sumber Berkat and Mekar Plastik factories in Bandung, part of Cave Mekar Group, use rooftop solar to produce plastic bags, film, thinwall, cups and recycled pellets.
