Loss Evaluation Method for Power Transformers Serving Large PV Plants


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This online tool ascribes to a comprehensive loss evaluation method of power transformers serving large scale solar applications. The fact that these transformers are obliged to serve an intermittent energy source calls for a suitable method to evaluate their life-cycle losses and total ownership costs. These transformers may be owned by Independent Photovoltaic Power producers or by Regulated Utilities. Thus, the method embedded in this tool concurrently responds to the current efforts to address the concept of loss evaluation both in vertically-integrated and decentralized energy systems that are experiencing a high penetration of solar energy.

The work has been financially and technically supported by the Electricity Authority of Cyprus
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Input Data

PV Plant Technical Data


PV Plant Financial Data
System Energy Charges

Output Data

No-Load Loss Cost Rate (€/kW)
Load Loss Cost Rate (€/kW)
Auxiliary Loss Cost Rate (€/kW)
Levelized Cost of Electricity (€/kWh)
Transformer A
Purchase Price (€)
No-Load Losses (kW)
Load Losses (kW)
Auxiliary Losses (kW)
Total Ownership Cost (€)
Transformer A Transformer B
Purchase Price (€)
No-Load Losses (kW)
Load Losses (kW)
Auxiliary Losses (kW)
Total Ownership Cost (€)
Transformer A Transformer B Transformer C
Purchase Price (€)
No-Load Losses (kW)
Load Losses (kW)
Auxiliary Losses (kW)
Total Ownership Cost (€)

Input Data

PV Plant Technical Data


PV Plant Financial Data
System Energy Charges

Output Data

No-Load Loss Cost Rate (€/kW)
Load Loss Cost Rate (€/kW)
Auxiliary Loss Cost Rate (€/kW)
Levelized Cost of Electricity (€/kWh)
Transformer A
Purchase Price (€)
No-Load Losses (kW)
Load Losses (kW)
Auxiliary Losses (kW)
Total Ownership Cost (€)
Transformer A Transformer B
Purchase Price (€)
No-Load Losses (kW)
Load Losses (kW)
Auxiliary Losses (kW)
Total Ownership Cost (€)
Transformer A Transformer B Transformer C
Purchase Price (€)
No-Load Losses (kW)
Load Losses (kW)
Auxiliary Losses (kW)
Total Ownership Cost (€)