SUN Energy Solar-as-a-Service for Industry

SUN Energy is a solar energy developer founded in 2016 with its head office in Jakarta and offices in Singapore and Ho Chi Minh City. Part of the SUN Group, it describes its model as Sustainability-as-a-Service and helps industrial and commercial companies switch to solar power without heavy upfront spending.

The company designs and installs on-grid, off-grid and hybrid solar PV systems, including hybrids with diesel, gas or wind. Customers choose between SUN Purchase (direct purchase), SUN Rental (15-25 years with ownership at the end) and SUN Leasing (3-6 years with ownership at the end). Every plan includes operation and maintenance, warranties and an IoT-based energy monitoring app. Clients span mining, cement, automotive, plastics, textiles, paper, malls, hotels and FMCG.

• On-grid, off-grid and hybrid PV: systems that can be combined with diesel, gas or wind generation.
• SUN Purchase: direct purchase of the solar system by the customer.
• SUN Rental: 15-25 year rental with ownership transferred at the end of the contract.
• SUN Leasing: 3-6 year leasing with ownership at the end and a 0% down payment option.
• Energy monitoring app: IoT-based remote monitoring of solar production.
• Bundled O&M: operation, maintenance and product and performance warranties.

Vietnamese factories in textiles, plastics or building materials can lease a rooftop system with no down payment and own it after the term. Mining or remote industrial sites can use hybrid solar-diesel systems to reduce fuel use. Hotels and malls can rent systems over 15-25 years to lock in lower energy costs.

Industrial customers can adopt solar with zero upfront cost through rental or leasing plans that transfer ownership at the end. Operation, maintenance and warranties are bundled into every plan. An IoT monitoring app gives remote visibility of system output. The company reports 385+ MW installed and 350+ projects in 2025.

Across Southeast Asia, manufacturers face rising power costs and decarbonisation demands from global buyers. Third-party financed rooftop solar, through rental, leasing or PPA-like models, is spreading in Indonesia, Vietnam and Thailand because it removes the capital barrier for factories.

Founded in 2016, head office in Jakarta with offices in Singapore and Ho Chi Minh City (3A-3B Ton Duc Thang). Projects in more than 20 Indonesian provinces and in Australia, including the Merredin Solar Farm (132 MWp). Named clients include Astra Honda Motor, Sido Muncul and Tjiwi Kimia.