Comprasion of DG Sets and Battery Energy Storage Systems (BESS)

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Here’s a detailed comparison between DG Sets and Battery Energy Storage Systems (BESS) for backup applications in renewable energy projects:

Aspects/ Parameters for Comprasion

DG Sets

Battery Energy Storage Systems (BESS)

Capital Cost

Lower initial cost

Higher initial cost

Operating Cost

High due to fuel and maintenance

Low operating cost

Fuel Requirement

Diesel or other fossil fuels

No fuel required

Emissions

High CO₂ and NOₓ emissions

Zero emissions during operation

Noise Pollution

High noise levels

Silent operation

Reliability

Reliable but fuel-dependent

Highly reliable with proper design

Scalability

Limited scalability

Highly scalable

Response Time

Slower response time

Instant response

Operations & Maintenance

Frequent maintenance required

Low maintenance

Integration with Renewables

Basic integration possible

Seamless integration with renewables

Environmental Impact

Negative due to emissions and fuel

Positive environmental impact

Black Start Capability

Yes

Yes (with inverter support)

Lifespan

5–10 years

10–15 years

Efficiency

30–40%

85–95%

Remote Monitoring

Limited

Advanced monitoring available

 Note: Please mention what more addition variables to be considered for the comprasion, post your views in the comments below.

Location: India

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