The main distinctions lie in the monthly payment structure and accounting treatment. Under a PPA, payments vary based on the actual kilowatt-hours (kWh) generated and consumed. In contrast, the Rental model features flat, predictable monthly fees. Additionally, PPA models are highly suited for off-balance sheet treatment, while Rentals offer effortless budget management under on-balance sheet structures.

For PPA and Rental models, we fully handle and cover all maintenance and repair costs. Through our remote monitoring services, we conduct rigorous technical inspections of all critical hardware—including mounting structures, solar panels, junction boxes, inverters, and DC/AC combiner boxes—ensuring anomaly-free operations with zero risk to your business.

The greatest advantage is the power to maximize your long-term financial returns (ROI). While it requires upfront capital, all generated electricity is entirely free to use, delivering substantial savings on utility bills and unlocking the highest possible financial yield over time.

Transitioning to clean energy guarantees definitive carbon reductions across your operations. This not only enables you to seamlessly clear the strict decarbonization requirements set by business partners but also links directly to higher global CDP evaluations and strategic ESG investment recognition.

Yes. We conduct a rigorous on-site structural integrity assessment by a certified licensed civil engineer before any installation. We carefully evaluate the roof's capacity against the added load of the solar modules and mounting frames, factoring in local Thai building codes and wind-load risks. If structural reinforcement is deemed necessary, we will provide an optimized retrofitting solution tailored to your facility.

No, in principle, the installation can be executed without disrupting your daily factory operations. Material delivery and the installation of mounting structures and panels are carried out within designated safety zones to ensure your operations continue smoothly. However, a brief scheduled power outage of a few hours will be required during the final grid connection phase (tie-in works). We will coordinate this closely with your team to schedule it during non-production days, weekends, or night shifts to minimize any impact on your business.

We can quickly generate a highly accurate, custom simulation with the following data: ・AMR data for the past 12 months (15-minute interval power consumption data). ・Monthly electricity bills for the past 12 months. (※If AMR data is available, a single bill from the most recent month is sufficient.) ・Your company’s operational/factory calendar. (※This is not required if AMR data is provided.) Based on these inputs, we will carefully analyze your specific power consumption patterns to estimate the optimal system capacity and prospective savings. Providing AMR data allows us to deliver a highly precise, reality-based simulation tailored to your facility.

Following the preliminary estimate, we conduct a detailed on-site survey before finalizing the formal proposal. The initial estimate projects theoretical power generation and financial savings based on your utility data and drawings. Afterward, our engineering team executes a comprehensive on-site inspection to assess roof condition, structural integrity, shading factors, and AC/DC routing. This ensures our final design and quotation are highly accurate and executable.

We typically deliver your preliminary simulation within approximately one week after receiving the required documents. At ITC ENEX (Thailand), we prioritize speed to support your corporate decision-making, ensuring a prompt turnaround of your custom proposal that clearly visualizes your financial and environmental benefits.

It typically takes approximately 1 to 2 months (about 4 to 8 weeks). Based on the roof's structural integrity, actual electrical routing, and specific solar irradiation data gathered during the site inspection, our engineering team executes full architectural system design and optimal hardware selection.