NEWS & CSR

The Benefits of Solar Panels in Reducing Energy Costs in Spinning Mills

13 Des 2025 | News Category: Technology

Factory electricity costs represent one of the largest expense components in the manufacturing industry, particularly in spinning mills where heavy equipment such as ring spinning machines, air compressors, and HVAC systems consume substantial amounts of energy on a daily basis.
As global trends increasingly emphasize sustainability and energy efficiency, many manufacturers are now considering industrial solar panels as an effective solution to reduce operating costs while meeting environmental expectations.

Energy Challenges in the Textile and Spinning Industry

The textile industry, including spinning mills, is known for its intensive electricity consumption. Production machines operate nearly 24 hours a day under high electrical loads, making factory electricity costs a significant portion of total production expenses. At a time when industrial electricity tariffs from PLN continue to rise, factory energy-saving strategies have become a key focus in operational cost management.

Spinning Mill Profile

Overview of Operations

Each spinning mill has unique characteristics, such as plant location, production capacity, number of spindles, and high monthly or annual energy consumption. In most cases, electricity usage for production machinery and supporting facilities dominates the fixed cost structure.

Electricity Costs within the Cost Structure

Electricity is not only about the price per kWh, but also about its impact on product competitiveness. The more efficiently energy is used, the stronger the mill’s competitive position in both local and global markets.

Why Solar Panels for the Manufacturing Industry?

Continuously Rising Electricity Prices

PLN electricity tariffs for the industrial sector remain relatively high. Relying on conventional power sources means continued exposure to future tariff increases.

Alignment with Operating Hours

Spinning mill operations, which are predominantly active during daytime hours, naturally align with energy generation from industrial solar panels. Solar energy can supply power during peak load periods, reducing dependence on the main power grid.

Carbon Emission Reduction

Adopting rooftop solar PV systems helps reduce factory carbon emissions—an important advantage for meeting environmental standards and attracting buyers who increasingly prioritize sustainable practices within the global supply chain.

Technical Study of Rooftop Solar PV Installation

Common Installation Types

Rooftop solar PV systems can be installed as on-grid rooftop systems, ground-mounted systems, or carport PV solutions. The appropriate option depends on available roof area, solar orientation, and required power capacity.

System Capacity and Available Area

System design must consider installed capacity (in kWp or MWp), available roof area, and shading levels, all of which directly affect energy output.

Performance and Efficiency Data

Solar Energy Potential in Indonesia

As a tropical country, Indonesia has high solar radiation potential of approximately 4.5–5.1 kWh/m² per day, making it an ideal location for industrial solar panels to generate electricity efficiently.

Output and PLN Electricity Substitution

With a well-designed system, rooftop solar PV can replace a significant portion of PLN electricity consumption and deliver tangible factory energy savings.

Financial Analysis

Investment and Returns

Although the initial CAPEX (Capital Expenditure) for solar PV installation is relatively high, the declining cost per kWh and a competitive payback period—typically between 5 to 10 years depending on system size and electricity tariffs—make this investment financially attractive in the long term.

Annual Cost Savings

By substituting grid electricity with solar energy, factories can significantly reduce monthly electricity bills. Several studies indicate potential savings of approximately 40–60% of total electricity costs.

Environmental Impact and ESG

CO₂ Emission Reduction

Using solar energy directly reduces a factory’s operational carbon footprint, creating significant value for ESG strategies and enhancing brand image among consumers and international buyers.
This also supports compliance with standards such as the Higg Index, GOTS, and ISO 14001, strengthening the mill’s position within an increasingly ESG-driven global supply chain.

Regulatory Framework and Policies in Indonesia

Latest Rooftop Solar PV Policies

The Indonesian government, through the Ministry of Energy and Mineral Resources (MEMR), continues to promote rooftop solar PV adoption by introducing more supportive regulations that facilitate installation and grid integration. National targets also include expanding rooftop solar PV capacity to support renewable energy goals.

Project Implementation and Phases

A Systematic Approach

Solar PV implementation includes energy audits, feasibility studies, engineering design, installation, commissioning, as well as ongoing monitoring and maintenance. Each stage is essential to ensure optimal system performance and the expected factory energy savings.

Challenges and Solutions

Roof Structure Considerations

Additional panel loads must be carefully assessed from a structural perspective to ensure safety. Meanwhile, challenges related to weather variability and electrical system integration require appropriate technical solutions through thorough planning and the use of high-quality components.

Integrating industrial solar panels in spinning mills is not only about reducing factory electricity costs, but also about improving operational efficiency and supporting a more sustainable industrial vision.

With Indonesia’s strong solar energy potential and supportive regulatory environment, now is the right time to move toward a cleaner and more efficient energy future.

For your textile product needs and solutions that support your factory’s performance, please contact us.

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