If I import HH data into PVSol, does it use this when calculating self-consumption with an hourly simulation, or does it add the 2 HHs together and use hourly data?

Further to the above, is the formula used to calculate self-consumption % simply 'if consumption is greater than PV output then 100%, if not then = consumption/pv output'? This would essentially assume that PV output and site demand is completely flat for each simulation period.

Thanks,

Haydn

Wannie Zorzetto Load Profile.csv

I am currently working on a university project involving an existing large rooftop PV system.

The system consists of more than 13,000 PV modules in total, distributed across many strings, existing generator junction boxes (GAK) and inverter units.

Due to a requirement from a regulatory authority, several modules in the upper roof rows have to be removed because they extend beyond the roof ridge. As a result, parts of the existing PV generator field must be redesigned to remain compliant while minimizing energy losses.

My task is not to design a completely new PV system from scratch. Instead, I have to evaluate and optimize an existing installation after the removal of several hundred modules.

The project includes:

• analysis of the existing PV generator field,

• development and comparison of different retrofit solutions,

• redesign of the string layout,

• reassignment of strings to existing generator junction boxes (GAK),

• verification of electrical constraints such as string voltage, current, inverter limits and MPPT operating range,

• evaluation of whether existing cabling can continue to be used,

• consideration of possible shading effects,

• adaptation of the existing string monitoring system,

• and comparison of the technical and economic impacts of different solutions.

My question is:

Would PV*SOL Premium be a suitable tool for checking and validating such retrofit variants?

Or is this type of task usually better done manually, for example by using the existing string plans, module and inverter datasheets, Excel calculations, and separate electrical checks?

I am especially interested in how such retrofit projects are normally handled in practice:

Do engineers usually model the modified system in software, or do they mainly redesign the strings manually and then verify voltage, current and inverter limits separately?

I would be very grateful for any practical experience or recommendations.

Thank you very much.

What's the best way to consider PV systems built on a water body in PV*SOL? So far, there is no opportunity to take lower temperatures (1-3°) and therefore higher energy yields (5-10%) of the PV systems on water within PV*SOL into consideration. The only way I've thought of so far is to change the ambient temperature at the destination to the targeted- For example, if we have Berlin with mean temperatures of 12° over the year, I could decrease the temperature to 10°. However, this seems to be quite inaccurate to me and I would like to ask for another idea how to handle that problem. Additionally, it is quite complicated to create your own climate data file, which is why there probably must be another solution?

Thanks for any answer.

Best, Manuel

I am trying to add new modules, inverters and pannels to my database, but on the mayority of data sheets from products I dont get all the specifications that PV sol asks me of. 

I add an example image. How would you fill up the data of the following inverter and batteries. 

https://oss.tcldigitalpower.com/1/file/2026/03/20260325092044182_6fyaq0tx4csr.pdf

And also, why is the inclination not the same as the Roof Pitch when my system is setup for flat roof mounting?

In the project I have created, why will there be power supplied form the grid if there is enough Solar Power. I have activated the Daily profile so that only load is drawn from 12h00 - 16h00 but does not make a difference. Is there something I am missing?

In this project I would like to use solar edge inverter and one optimizer for 2 panels. 

I have attached a PV sol file 

i have issues with using 2 panels one optimizer , but works fine 1 x1

could you let me know how i can make this work ?

Spectrum House Rev A.pvprj

I need to create a project with a Hybrid Inverter and a separate battery connected to the Inverter. NOT a Battery System with a battery inverter. The battery selections are in the database that I must use but nowhere is there a selection of the free standing battery. Which system type must be used? Is it the one I highlighted below?

In the database the batteries are there, but where do you add them?

Are there any videos or illustrations that will help me understanding the Financial Analysis part in detail. I am struggling to understand this.

Regards

Thanks

Umresh

According to these rules, if the consumer takes less energy from the grid than they send to it, the price of the exported energy is €0.085/kWh.

If the consumer sends more energy to the grid than they consume from it, then the price of the exported energy is calculated using the formula:

0.085 × (consumed / exported)

Thank you in advance.

I've looked at duplicating the entry to change it, but it only lets you choose how many of the trackers are at each input, not which trackers it applies to - is this something that can be done so we can accurately string these inverters?

Thanks

I have attached a project where I am trying to determine how many panels and what size inverter would be optimal for this setup if the customer wants a self-consumption share of 80%. At the moment, I am basically just testing different configurations.

Another question regarding this project: you can see that I have installed batteries—5 units of 5.12 kWh each. This results in a self-consumption rate of 66.4%.

Has AI control for charging and discharging the batteries been included in the calculation? With AI control, wouldn’t the self-consumption rate be expected to increase further?

partdesign.pvprj

On larger commercial batteries, they have an HVAC system to maintain battery temperature within safe limits.

These are usually AC coupled batteries, such that you have a normal string inverter (eg. Fronius Symo 10kW) and a 50kW 215kWh battery, with the battery's 50kW allowing power in and out of the battery to increase self consumption. Not many configurations have PV strings going to the battery

Is the consumption of HVAC simulated in PVSol? There could be night time power consumption due to the battery.

Where would I put this information in? I know inverters can have night consumption, could i add an inverter with no strings connected for this usecase?