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Construction: Indoor Equipment Operation

Construction: Indoor Equipment Operation

Excavator working indoors

This is Part 2 of a blog series dedicated to the major drivers and enablers for electrification within the construction industry.

Part 1: Environmental Protection Drives Electrification

Construction equipment and machinery rely on either electric motors or combustion engines to operate. However, the former offers numerous advantages compared to the latter when working indoors—diesel-powered equipment produces significant exhaust causing several health and safety risks to operators.

Exhaust Health and Safety Risks

The primary dangers of operating gas or diesel-powered equipment are related to the workers’ inhalation of exhaust fumes—notably, carbon monoxide and particulate matter. Workers exposed to diesel exhaust are 40% more likely to develop lung cancer. Estimates project that over 3.6 million Europeans have been exposed to concerning levels of diesel emissions.1

Even though ventilation and filtration facilitate safer operation, upfront expenses and ongoing maintenance needs still present challenges.

The US Occupational Safety and Health Administration (OSHA) recommends the following precautions for the general operation of diesel engines to minimize pollutants:2

  • Schedule and perform regular maintenance
  • Install cleaner-burning engines, exhaust filters, and diesel oxidation catalysts
  • Run diesel engines on specialty fuels or use additives
  • Provide a clean air supply and ensure proper operation of ventilation systems

When operating exhaust-producing equipment and machinery indoors, OSHA’s guidance becomes even more essential for construction companies. However, adherence will increase maintenance costs, equipment downtime, and consumables (e.g., replacement filters).

Carbon Monoxide

A by-product of burning fuel is the production of carbon monoxide (CO)—an odorless, tasteless, and colorless gas capable of killing those who inhale it.3 When exhaust-producing equipment is used indoors, the minimized or complete lack of ventilation allows CO to accumulate—any operators or nearby workers risk poisoning.

Particulate Matter (PM)

Particulate matter (PM) or diesel particulate matter (DPM), common in diesel exhaust (DE), presents a significant health risk indoors. According to the Canadian Centre for Occupational Health and Safety (CCOHS), DE may contain toxic particles and chemicals such as:4

  • DPM
  • Soot (carbon particles)
  • Carbon monoxide
  • Nitrogen oxides
  • Sulfur oxides
  • Hydrocarbons

The National Institute for Occupational Safety and Health (NIOSH) and the National Cancer Institute (NCI) have released findings that diesel exhaust exposure increases lung cancer risks.5

Additional Health and Safety Risks from Gas and Diesel Equipment

Aside from the primary dangers of exhaust inhalation, operating gas and diesel-powered equipment indoors causes noise pollution and increases the risk of fuel spills and fires.

Ear protection can help mitigate long-term hearing damage. However, noise elevation on job sites decreases workers’ awareness and increases accident likelihood, potentially causing injury or death.

Electrification’s Benefits for Indoor Operations

Operating electric-drive equipment and machinery virtually eliminates most of the dangers that exhaust-producing counterparts introduce to job sites. There is no exhaust (or associated costs), noise pollution is minimized (or absent with smaller tools), and there are no fuels to spill or catch fire.

In addition to smaller equipment, advances in battery power have helped electrify heavier machinery and equipment (e.g., scissor lifts, forklifts, aerial work platforms, floor care). Even heavy construction machinery that previously required internal combustion engines can now operate on battery power.

Electrify Your Equipment and Machinery Lines

Original equipment manufacturers should consider developing electrically powered equipment and machinery to expand their product lines. Electrification presents clear, advantageous, and marketable benefits to worker health and safety compared to exhaust-producing alternatives. Additionally, it yields ongoing cost reductions.

To guide manufacturers through their electric transitions, Delta-Q Technologies brings a wealth of experience in designing, producing, and testing battery chargers and systems.

Want to learn more?

To learn more about the benefits electrification brings to construction machinery, visit our landing page.

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Written By:

Delta-Q Technologies

Delta-Q Technologies (Delta-Q) is charging the future and driving the world's transition to electric energy. They collaboratively design, test, and manufacture robust battery chargers that improve the performance of our customer's electric drive vehicles and industrial machines. As the supplier of choice for Tier 1 OEMs, their customer support and engineering expertise guide their customers through the electrification process for a sustainable world. Delta-Q, a ZAPI GROUP company, is headquartered in Vancouver, Canada. The company’s team and its distributors span five continents and service industries such as electric golf cars, lift trucks, aerial work platforms, e-mobility, floor care machines, utility/recreational vehicles, and new markets, like construction and outdoor power equipment. Please visit their website for news and resources at, or follow company updates on Twitter and LinkedIn for more information.

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