[Equest-users] Re-posting: PV simulation helioscope vs eQuest

[Jones, Christopher]

I suggest trying PVWatts<https://pvwatts.nrel.gov/> as a third comparator. It is fairly straight forward to use.


Christopher R Jones, P.Eng.
T+ 1 416-644-0252

[cid:image002.png at 01D44697.878FC7E0]

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Pramod .D via Equest-users
Sent: Friday, September 07, 2018 8:34 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Re-posting: PV simulation helioscope vs eQuest

Dear eQuesters,

Recently I have been working on a project where the clients are planning to use the PV modules for electricity generation. I have a Helioscope simulation report provided by the PV contractor which shows the power generation as 105,300 kWh per year. However, when I use the same details mentioned in the report for my eQuest simulation, I am getting 26,576 kWh. Can anyone please explain the discrepancies on these reports or am I missing something?

The PV system used in this project has 4 inverters of capacity 20kW each. Four segments PV models with 33.6kW, 18.6kW 16.8kW and 16.1kW power generation capacity. Tracking volts of inverters : 244-529 Vac.

Thanks in advance

Regards,
Pramod

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