Measured Energy-Saving Renovation of Factory All-Optical Networks.AINOPOL Passive Solutions Cut Power Consumption of Industrial Parks

Against the full implementation of national dual-carbon and low-carbon policies, manufacturing factories and industrial parks are actively carrying out energy-saving renovation for various facilities. However, most enterprises only focus on high-power consumption equipment such as production machines, air compressors and central air conditioners, while long ignoring weak-current network systems which serve as hidden major power consumers.

Under the traditional three-layer active switch networking mode in factories, core switches, floor aggregation switches and PoE access switches operate non-stop 24 hours a day. Together with dedicated cooling air conditioners installed in equipment rooms and floor weak current rooms, the annual electricity expense for weak-current systems reaches tens of thousands of yuan, leading to considerable accumulated energy costs within 3 to 5 years. Besides, numerous heat-generating devices in equipment rooms also bring potential safety hazards such as short circuits and fire outbreaks. It is impossible to fundamentally solve high power consumption problems via traditional copper cable or active optical fiber networks merely by shutting down a small number of idle switches.

Adopting passive PON photoelectric integration solutions centered on passive ODN optical splitting architecture, AINOPOL can reduce the overall weak-current power consumption of industrial parks by 70%.

I. Four Root Causes of High Energy Consumption of Traditional Active Switch Networks

Traditional factories widely deploy three-layer active Ethernet architecture consisting of core layer, aggregation layer and access layer, resulting in multiple power consumption sources. The four major energy-consuming pain points are listed as follows:

1. Massive Active Devices Consume Basic Power Around the Clock

Calculated based on standard 15-story factory buildings with 20 four-person working areas on each floor, traditional networking requires deployment of aggregation switches and PoE access switches on every floor, adding up to more than 40 active switches in total. A common single switch consumes 20W to 40W power, with extra power loss generated by PoE power supply modules during 24-hour continuous operation.

According to official data, the total weight of horizontal wiring cables under traditional network solutions hits 3570kg, matched with a large quantity of switches and power supply devices. The annual power consumption of switches alone exceeds ten thousand kilowatt-hours, making the annual basic electricity fee for weak-current systems easily surpass 10,000 yuan for small and medium-sized factories.

2. Mandatory Air-Conditioning Cooling in Confined Weak Current Rooms Accounts for 40% of Cooling Energy Use

Switches generate massive heat during continuous operation. Narrow and poorly ventilated floor weak current rooms filled with oil stains and dust further accelerate temperature rise, hence dedicated air conditioners have to run all year round for constant temperature cooling. Dozens of such air conditioners equipped in factory workshops and dormitory buildings take up 40% of the total weak-current power consumption, becoming a major incremental expenditure on electricity bills. Many factories choose to turn off cooling air conditioners to save costs, which directly causes switch overheating shutdowns and frequent workshop network disconnections that disrupt normal production.

3. Invalid Power Loss Caused by Multi-Level Power Conversion

Traditional layouts adopt independent PoE power adapters and cabinet power supply modules on each floor. Multiple AC-DC power conversions produce thermal energy waste, raising overall power consumption by 30% under the same terminal power supply demand. Aging power supplies of outdated switches further lower energy conversion efficiency, leading to rising annual power consumption even with unchanged connected device quantities.

4. Cumulative Energy Consumption Brought by Equipment Iteration

Traditional switches need batch replacement after aging within 3 to 5 years. The coexistence of old and new devices doubles equipment quantities and pushes up short-term power consumption. Every bandwidth upgrade requires additional complete switch cabinets, resulting in continuous expansion of equipment rooms and year-on-year growing power consumption, which keeps the long-term TCO energy cost at a high level.

II. Core Energy-Saving Principles of AINOPOL Passive PON Networks

AINOPOL factory all-optical networks adopt a two-tier flattened passive architecture composed of core room OLT devices, passive ODN optical splitters and POF photoelectric integrated terminals, completely eliminating all floor active power-consuming equipment. Four core mechanisms achieve a 70% drop in energy consumption. All data are derived from actual electricity meter records before and after factory renovations, with the measured reduction range standing at 68% to 73% and the unified publicized figure set at 70%.

1. Zero Power Consumption of Passive Optical Splitters Eliminates Floor Power Consumption Points

Passive ODN optical splitters are purely composed of optical glass components without circuit boards, power modules or cooling fans, requiring no external power supply at all. All basic power consumption generated by dozens of switches on each floor under traditional modes is eliminated thoroughly.

In traditional 15-story buildings, every floor weak current room is equipped with multiple power-consuming switches, while only powerless passive splitters are deployed after passive transformation, cutting basic weak-current energy consumption by over 60%. According to official wiring calculation models, the total weight of horizontal passive photoelectric composite cables is merely 135kg, accompanied by a sharp reduction in supporting power-consuming devices.

2. 80% Reduction in Active Devices Plunges Basic Equipment Room Power Consumption

Around 40 traditional switches are streamlined down to only 3 to 5 integrated OLT gateways. One single FTTN integrated gateway integrates multiple functions including OLT access, wireless AC control, VOIP voice service, SD-WAN interconnection and firewall protection. Its total power consumption is far lower than the combined power usage of dozens of independent switches, reducing basic equipment room operating power consumption by 80% and lowering loads of internal power supply and distribution cabinets simultaneously.

3. Removal of Floor Cooling Air Conditioners Cuts Cooling Energy Use by 70%

Without continuously heat-emitting switches inside floor weak current rooms, all dedicated floor cooling air conditioners can be shut down all year round, with only one small constant-temperature air conditioner reserved in the core equipment room for OLT heat dissipation. Compared with the round-the-clock operation of central equipment room air conditioners plus dozens of floor cooling units in the past, the overall power consumption of air conditioning systems drops by 70%, saving expenses on air conditioner procurement, maintenance and electricity bills altogether. Meanwhile, the passive architecture leaves no high-temperature heat sources in weak current rooms, removing potential safety hazards such as heat accumulation short circuits and oil-stain-induced fires.

4. Centralized 48V Low-Voltage Remote Power Supply Reduces Multi-Level Conversion Losses

AINOPOL POF photoelectric composite cables realize unified 48V low-voltage remote power supply from core equipment rooms, phasing out scattered PoE adapters on each floor and minimizing invalid energy loss during repeated power conversions, which boosts terminal power supply efficiency by 40%. Integrated OLT devices are embedded with self-developed low-power PON chips, consuming 50% less electricity than traditional switches with the same device-bearing capacity to further curb basic equipment room power usage.

III. Five Comprehensive Practical Benefits of Factory Passive All-Optical Network Energy-Saving Renovation

1. 70% Drop in Measured Weak-Current Power Consumption Saves Substantial Annual Electricity Costs

Take a medium-sized mechanical processing factory with 1,200 employees as an example: its total annual weak-current power consumption reaches 28,600 kWh before renovation. Calculated at the electricity price of 0.65 yuan per kWh, the annual electricity fee amounts to 18,590 yuan. After passive all-optical network transformation, the annual power consumption is reduced to 8,580 kWh with the annual electricity cost falling to 5,577 yuan, saving 13,013 yuan on electricity bills every year. The saved expenses within 3 to 4 years can fully cover the incremental investment in renovation. Large-scale ten-thousand-square-meter warehouses and multi-site factories can save over 30,000 yuan in electricity fees annually.

2. Compliance with Industrial Low-Carbon Policies Enables Application for Special Energy-Saving Subsidies

Passive F5G all-optical network renovation falls into projects integrating industrial digital upgrading and green low-carbon transformation. Industry and information technology bureaus and industrial park management committees across the country offer cash subsidies and tax reductions for factory weak-current energy-saving renovations, which further cut enterprise investment costs and help factories meet dual-carbon assessment targets smoothly.

3. Extended Service Life of Devices Reduces Indirect Energy Consumption from Equipment Iteration

Low-power and low-heat operation slows down chip aging of OLT devices and photoelectric terminals, extending the stable service life of equipment to more than 8 years. It reduces indirect carbon emissions generated by frequent switch procurement, transportation and production, realizing long-term green operation.

4. Fan-Free Passive Devices Greatly Lower Equipment Room Noise

Optical splitters are designed without cooling fans, which effectively reduces noise pollution in equipment rooms and improves the working environment of on-duty staff. Enterprises also save regular expenses on fan accessory procurement and replacement, cutting daily operation and maintenance material costs.

5. 70% Saved Equipment Room Space Eliminates Demand for Additional Power Distribution Cabinets

Streamlined integrated OLT devices occupy only one-seventh of the traditional equipment room space. There is no need to add extra power distribution cabinets or UPS power supply equipment, saving investment on power distribution system expansion and cutting power consumption of supporting electrical facilities synchronously.

Traditional three-layer active switch networking in factories results in superimposed power consumption from massive round-the-clock running switches, matched PoE power supplies and multi-layer cooling air conditioners. Weak-current network systems have become easily overlooked hidden high-energy-consumption sectors with steadily rising long-term electricity expenses. Moreover, numerous heat-generating devices bring fire risks in workshops and weak current rooms, failing to meet the mandatory requirements of industrial dual-carbon low-carbon development.

Supported by two core technologies — powerless ODN optical splitters and drastically streamlined active devices, AINOPOL F5G-FTTN passive PON photoelectric integration solutions cut power consumption at both equipment room and floor levels, saving tens of thousands of yuan in electricity fees for factories every year. Enterprises can also apply for special industrial energy-saving renovation subsidies in various regions. One-stop network digital upgrading completes low-carbon energy-saving transformation simultaneously, making it the optimal solution for weak-current energy-saving upgrading of manufacturing factories and large warehouse parks.

FAQ

Q1: Do photoelectric AP terminals consume excessive power and push up total energy consumption in large-scale deployment?

A: The power consumption of a single Wi-Fi6 photoelectric AP is only 8-12W, far lower than the 25W power usage of a traditional floor PoE switch. Even deploying thousands of such terminals, the total power consumption remains lower than that of traditional switch networking systems.

Q2: Is daily power consumption inspection difficult without full-time electricians for passive networks?

A: The EAAS cloud platform monitors real-time power consumption and voltage data of all network devices. Energy consumption reports can be generated with one click via mobile APPs without manual electricity meter reading. The system automatically sends alerts for abnormal power-consuming devices, enabling ordinary administrative and property staff to complete monthly energy consumption management work easily.

Q3: How to calculate long-term energy-saving benefits given the 30-year service life of optical fibers?

A: Optical fibers require no cable replacement or batch switch renewal within 30 years after one-time laying. Calculated based on an annual power saving of 13,000 kWh and electricity price of 0.65 yuan per kWh, the total saved electricity fees will exceed 250,000 yuan in 30 years, which is far more than the initial cost difference of renovation investment.