Power Generators as Prime Power Supply for Industry | APEX Agregaty
Lack of connection capacity, long waiting times for grid operator conditions, seasonal peak energy consumption, expansion of machinery, or investing in a "powerless" location – this is everyday life in the industry. In such situations, power generators can act not only as an emergency energy source but as the primary (prime) power supply for the facility: temporarily during expansion, and sometimes even long-term – if it makes business and technical sense.
As APEX AGREGATY PRĄDOTWÓRCZE – we handle such projects, from capacity and rating selection, through the delivery of proven power generators, their assembly, commissioning, and, very importantly, professional post-installation service, ensuring everything works exactly as the Client wishes.
ISO 8528-1 – why is this standard crucial when selecting a generator for a "factory" operation?
If a generator is to be the main power source for a factory, it is not enough to look at the "kVA from the catalog". You must select the rating (operating class) and operational parameters according to the intended use. This is exactly where ISO 8528-1 comes in, the standard defining the classifications of applications, ratings, and parameters of generator sets driven by internal combustion engines. In the previous article, we explained in detail what this ISO standard is about, what a rating is, and how a generator is selected based on rating and power.
When does powering a factory with generators make sense?
This solution is particularly justified when at least one of the following scenarios occurs:
1) Lack of connection capacity or a "bottleneck" in the connection
- expansion of a technological line
- supporting an existing technological line
- need to increase power
- new production hall
- new investment
- new location
- the grid operator is unable to increase power quickly
Generators are used to take over the power supply of the entire or part of the plant (e.g., only production, not offices).
2) Investments and construction sites with high power consumption
- concrete batching plants, crushing plants
- open-pit mines
- gravel pits
- industrial construction site facilities
- large assembly yards
- large-scale field welding works
Here, quick commissioning and resistance to harsh conditions are what count.
3) Recycling and waste management
- shredders, separators, presses, sorting lines
- large motor startups and dynamic loads
- hydraulic presses, shear balers, compactors, mills
In such applications, it is crucial to select a system capable of handling startups (often several generators, parallel operation, appropriate power reserve).
4) When your production requires high power, but not all the time, only a few days a week.
- In this case, by operating from power generators, you avoid paying very high fees for contracted capacity and transmission fees. Often, you can save so much on the fees alone that running on a generator becomes more profitable than using the grid.
5) Production in locations with an unstable grid, where the grid "collapses" and downtime costs more than fuel, the following systems make sense:
- generators as the base + grid as backup,
- or grid + generators to compensate for power shortages and maintain continuity.
When does this solution usually NOT make sense (or requires a different concept)?
Powering the "entire plant entirely on diesel" can be unprofitable or risky when:
- you simply have cheap electricity, sufficient power, and stable supply conditions
- the load profile is highly variable, with long periods of low load (risk of inefficient operation and operational problems)
- the plant operates 24/7, and fuel costs exceed the product value (often a mix is better: grid + energy storage + generators for peak shaving/backup)
- local environmental/noise restrictions are very strict (sometimes more expensive acoustic and exhaust solutions are required)
- extremely high power quality is required for sensitive electronics without appropriate filtration/UPS systems
Advantages of powering a factory with power generators
- Quick production startup despite the lack of a final grid connection
- Scalability – you can start with one unit and expand the system to unlimited power (adding more generators, parallel operation)
- Independence from grid limitations and risks associated with the energy supplier
- Ability to power designated areas (e.g., only critical lines, only the hall, only production)
- Control over power parameters and priorities (automation, load shedding, startup sequences)
- Lack of transmission and capacity fees, which often offsets the cost of a kilowatt-hour produced by a generator
Disadvantages and risks – what must be said straightforwardly
- Fuel costs and delivery logistics (tanks, schedules, security)
- Service and inspections: in prime/continuous operation, this is part of the production plan, not a "once a year" task
- Risk of underestimating power requirements: motor startups, load surges, welders, furnaces, crushers
- Technical requirements on the installation side: switchgears, ATS, synchronization, protections, selectivity
That is why in industrial projects, the key is not only "which generator," but what power system – and this is where the contractor's experience matters.
Once again, and probably not for the last time, we remind you that to select a generator as the primary power source, you must strictly consider:
- Load profile (min/typ/max, startups, surges)
- Operating mode: island mode or grid-parallel?
- Rating according to ISO 8528-1: most often PRP or COP – depending on the nature of the load
- Power reserve for startups and future expansion
- Power quality (sensitive drives, inverters, electronics)
- Fuel logistics and required autonomy time
- Environmental conditions: temperature, dust, noise, local restrictions
- Service costs and SLA – Service Level Agreement.
If you are in the manufacturing, recycling, processing, or industrial construction sector, or planning an investment in a location without grid power – this topic can only be done right when the generator is selected for real work, not just "to fit a table." As APEX AGREGATY PRĄDOTWÓRCZE, we carry out complete implementations and solutions, from design to the delivery of appropriate machines. As proof that this article is not just theory, we show a few of our solutions where power generators work and serve as the main power source.
2500 [kVA] - 2000 [kW] - Daily operation processing "Scrap Metal"
- Powering Recycling Machinery - POWER - 2500 [kVA] = 2000 [kW]
- Synchronization [Gen-set - Gen-set] 5 x HIMOINSA HFW 500 T5 in a special APEX AGREGATY specification
- Daily operation with 4 machines - 1 machine as backup.
- The machines operate with a variable load of around 1200 [kW] = 1500 [kVA]
1500 [kVA] - 1200 [kW] - Daily operation in facade panel production.
- Synchronization [Gen-set - Gen-set] 3 x HIMOINSA HFW 500 T5 in a special APEX AGREGATY specification
- Daily operation with 2 machines - 1 machine as backup.
- The machines operate with a variable load of around 560 [kW] = 700 [kVA].
2000 [kVA] - 1600 [kW] - Daily operation powering compressors.
- Powering Shock Freezer Compressors - POWER - 2000 [kVA] = 1600 [kW]
- Synchronization [Gen-set - Gen-set] 4 x HIMOINSA HFW 500 T5 in a special APEX AGREGATY specification
- Daily operation with 2 machines - 2 machines as backup.
- The machines operate with a variable load of around 600 [kW] = 750 [kVA].
If you are looking for generators to power your continuous production, if you are looking for a company that will help you implement proven continuous power supply solutions based on power generators, we invite you to cooperate.
With us, you will achieve the goal and solution you are looking for.
Trust us and ask for an offer.
If your idea for continuous power supply from generators makes sense, we will confirm it.
If your idea for continuous power supply from generators doesn't make sense, we will tell you so.
Call us - 732 733 300 - Ask, let's talk about your idea.
