Partners with GUNKUL to Deliver End-to-End Clean-Energy Solutions
Upper Class Solution, A5’s integrated residential management and homeowner-care business, has partnered with GUNKUL, a leading clean-energy company, to install Solar Rooftop systems for A5 homeowners. The initiative supports the government’s “People’s Solar” policy by making clean energy more accessible, safe and suitable for each home.
Mr. Natthawat Luangviset, Head of Business Unit, Upper Class Solution Co., Ltd., said the company is working with Gunkul Engineering Public Company Limited (GUNKUL), an energy and electrical-systems specialist with more than 40 years of experience, to support Solar Rooftop installations for A5 homeowners and other interested customers. The systems enable households to generate electricity for their own use, reduce energy costs and, subject to applicable rules and conditions, sell surplus power back to the grid—helping households participate in Thailand’s clean-energy transition and progress towards a low-carbon society.
The partnership combines GUNKUL’s clean-energy and Solar Rooftop expertise with Upper Class Solution’s knowledge of residential management and the specific house types, structures, building systems and resident needs across A5 projects. This enables the installation process to be coordinated for each home with careful attention to performance, safety, aesthetics and project standards, while meeting each family’s long-term energy needs.
“An effective Solar Rooftop system must be designed to fit both the home and the residents’ way of life. Because energy-use patterns differ, Upper Class Solution selects an appropriate system for each home and manages every step through a single point of contact, making the transition to clean energy simple and reassuring.
“This collaboration reflects A5’s progression from residential development to comprehensive quality-of-life care. By combining GUNKUL’s clean-energy expertise with Upper Class Solution’s home-care services, we can deliver an integrated solution covering performance, safety, design compatibility and continuing long-term support,” Mr. Natthawat said.
Miss Warinthip Rosarpitak, Chief Operating Officer, Sustainable Energy Business and Strategic Investment, Gunkul Engineering Public Company Limited, said: “Government support for Solar Rooftop installations makes clean-energy investment more relevant to homeowners than ever. GUNKUL is bringing more than 40 years of energy-sector experience to systems tailored to the design and energy profile of each A5 home—from consultation and standards-compliant installation through to after-sales service. Solar Rooftop is not merely a way to reduce electricity bills; it helps strengthen a family’s long-term energy security amid unpredictable global energy volatility.”
Participating customers receive end-to-end support, including consultation and coordination, system sizing and design based on site and energy use, return-on-investment analysis, cost-saving guidance and document support for applicable government programmes.
Upper Class Solution also offers payment in up to three interest-free instalments—on order confirmation, installation and within one month after installation—together with a solar-panel warranty of up to 25 years and one year of fire insurance with coverage of up to THB 1 million. Estimated payback is approximately five to seven years.*
Eligible individuals may deduct qualifying Solar Rooftop equipment and installation expenses actually paid, up to THB 200,000, for an On-Grid system connected to the Metropolitan Electricity Authority or Provincial Electricity Authority and supported by a full-form e-Tax Invoice. The measure applies through 31 December 2028, subject to Revenue Department criteria and conditions.
The programme runs from 1 August to 31 December 2026 for homeowners and customers purchasing homes in participating projects. System capacity, installation design and other conditions will be determined by the house, structure, energy-use pattern and on-site survey to deliver an appropriate solution for each family.
The service is available to homeowners in all projects and is not limited to A5 residents. It marks another step in using clean energy to enhance Quality of Life—helping homes save energy, use it more intelligently, reduce environmental impact and prepare for future living needs. A5’s care continues throughout the ownership journey, beyond the day a home is handed over.
*Payback period varies according to system capacity, electricity-use pattern, electricity tariff and actual site conditions. Instalment payments, warranties and fire insurance are subject to the company’s terms and conditions.
