Revision history [back]

Dear Sir/Madam,

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1) Would you please answer why 25%-40% loss is shown through inverter? 2) Is there any option for battery in eQUEST for SPV plant modelling?

Kindly help me for my queries

Thanking you in anticipation

With kind regards

Ashok Dhayal

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1) Would you please answer why 25%-40% loss is shown through inverter? 2) Is there any option for battery in eQUEST for SPV plant modelling?

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1. Would you please answer why 25%-40% loss is shown through inverter?
2. Is there any option for battery in eQUEST for SPV plant modelling?

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1. Would you please answer why 25%-40% loss is shown through inverter?
2. Is there any option for battery in eQUEST for SPV plant modelling?

Inverter Specifications:

Capacity per inverter : 50 kVA; Efficiency: 93%; Inverter control : Run when needed; Minimum ratio: 0.02; Maximum ratio: 1.0752

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1. Would you please answer why 25%-40% loss is shown through inverter?
2. Is there any option for battery in eQUEST for SPV plant modelling?

Inverter Specifications:

Capacity per inverter : 50 kVA; Efficiency: 93%; Inverter control : Run when needed; Minimum ratio: 0.02; Maximum ratio: 1.0752

Here are the relevant sections of the inp file:

http://pastebin.com/nbHNPuwWfile here.

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1. Would you please answer why 25%-40% loss is shown through inverter?
2. Is there any option for battery in eQUEST for SPV plant modelling?

Inverter Specifications:

Capacity per inverter : 50 kVA; Efficiency: 93%; Inverter control : Run when needed; Minimum ratio: 0.02; Maximum ratio: 1.0752

Here are the relevant sections of the inp file here.

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1. Would you please answer why 25%-40% loss is shown through inverter?
2. Is there any option for battery in eQUEST for SPV plant modelling?

Inverter Specifications:

Capacity per inverter : 50 kVA; Efficiency: 93%; Inverter control : Run when needed; Minimum ratio: 0.02; Maximum ratio: 1.0752

Here are the relevant sections of the inp file here.

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1. Would you please answer why 25%-40% loss is shown through inverter?
2. Is there any option for battery in eQUEST for SPV plant modelling?

Inverter Specifications:

Capacity per inverter : 50 kVA; Efficiency: 93%; Inverter control : Run when needed; Minimum ratio: 0.02; Maximum ratio: 1.0752

Here are the relevant sections of the inp file here.

I have modelled 157.5 kWp roof top SPV plant in eQUEST with three electric generators of 52.5 kWp and three inverters of 93% efficiency. Each electric generator of 52.5 kWp is having 210 modules (1 module=250 Wp ) connected in series and parallel combination, i.e. 15 in series and 14 in parallel.

After simulation, In .SIM file, I found that the ratio of inverter output(AC kWh) to inverter input (DC kWh) lies between 60%-75% despite of 93% inverter efficiency.

1. Would you please answer why 25%-40% loss is shown through inverter?
2. Is there any option for battery in eQUEST for SPV plant modelling?

Inverter Specifications:

Capacity per inverter : 50 kVA; Efficiency: 93%; Inverter control : Run when needed; Minimum ratio: 0.02; Maximum ratio: 1.0752

Here are the relevant sections of the inp file here.