Open vs Soundproof Generator: Which Configuration Should You Choose?

Generator sets come in two primary configurations: open (skid-mounted) and soundproof (canopied). Your choice affects initial cost, installation requirements, noise levels, and long-term satisfaction.

Open Skid Generator

Description

An open generator set consists of the engine, alternator, radiator, and base frame — all exposed. There is no enclosure. This is the standard “industrial” configuration.

Advantages

• Lowest cost: 15-25% less than equivalent soundproof unit
• Easy maintenance: All components accessible without removing panels
• Better cooling: Unlimited airflow, no enclosure heat buildup
• Lighter weight: 10-20% lighter than enclosed equivalent
• Smaller footprint: No enclosure adds width/length
• Flexible installation: Can be custom-enclosed on-site

Disadvantages

• Loud: 95-110 dB(A) at 1 meter
• Weather exposure: Requires generator room or shelter
• Safety risk: Exposed moving parts, hot surfaces, electrical
• Less aesthetic: Industrial appearance

Best For

• Installations with dedicated generator rooms
• Industrial facilities with existing buildings
• Cost-sensitive projects
• Where noise is not a concern
• Prime power installations with regular maintenance access

Soundproof (Canopied) Generator

Description

A soundproof generator set has a steel enclosure with acoustic insulation, designed to reduce noise and protect the equipment from weather.

Typical Noise Levels

Configuration	Noise Level (7m)
Standard soundproof	75-85 dB(A)
Super soundproof	65-75 dB(A)
Ultra-quiet (residential)	55-65 dB(A)

Advantages

• Quiet operation: 15-30 dB(A) reduction vs open unit
• Weather protection: Rain, sun, dust, snow protection
• Security: Lockable enclosure prevents tampering and theft
• Aesthetic: Clean, finished appearance
• Outdoor installation: No generator room needed
• Built-in features: Can include sub-base fuel tank, exhaust system

Disadvantages

• Higher cost: 15-25% premium over open unit
• Heavier: Enclosure adds significant weight
• Reduced cooling access: Enclosure restricts airflow (derating in high ambient temps)
• Maintenance access: Panels must be removed for service
• Larger footprint: Enclosure adds to overall dimensions

Best For

• Urban areas with noise restrictions
• Rooftop installations
• Rental fleets (weatherproof, secure)
• Residential or hotel areas
• Sites without generator buildings
• Outdoor installations in harsh weather

Cost Comparison

Power	Open Skid	Soundproof	Difference
100kW	$8,000-12,000	$10,000-15,000	+20-25%
250kW	$18,000-28,000	$22,000-35,000	+20-25%
500kW	$40,000-60,000	$50,000-75,000	+20-25%
1000kW	$80,000-140,000	$100,000-170,000	+20-25%

Space Considerations

Power	Open Skid (L×W×H)	Soundproof (L×W×H)
100kW	2.5 × 1.0 × 1.5m	3.0 × 1.2 × 1.8m
500kW	4.0 × 1.5 × 2.0m	4.5 × 1.8 × 2.3m
1000kW	5.5 × 2.0 × 2.5m	6.0 × 2.2 × 2.8m

Making the Choice

Choose Open Skid If:

• You have an existing generator room or shelter
• Budget is the primary concern
• Noise is not an issue (industrial area)
• You need frequent maintenance access
• Weight or size restrictions favor lighter configuration

Choose Soundproof If:

• Installation is outdoors without shelter
• Noise regulations apply (most urban areas)
• Security and theft prevention are concerns
• Appearance matters (visible location)
• You want a turnkey solution with integrated fuel tank

Both Options Available from Pauway

Pauway Power manufactures both open and soundproof generator sets. Contact us to discuss which configuration fits your project.

Get Pricing for Both Options →