Predictika · Utility solar station orders

An AI sales agent's solar String Station order, checked before it goes out

An AI sales agent prepares an order for a utility-scale solar plant built from INGECON SUN String Stations with 330TL M12 or 350TL M12 inverters: the station size, the number of stations, the medium-voltage output, the site conditions and the string design. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the limits in Ingeteam's public datasheets and returns a verdict, every reason and the figures it computed.

Scope: INGECON SUN String Stations (SST 4620, 4900, 7900 and 8400) with 330TL M12 and 350TL M12 inverters: station size, plant capacity, medium voltage, site limits and string design. See everything this validator covers

This validator models orders for the INGECON SUN String Station and its INGECON SUN 330TL M12 and 350TL M12 inverters, based on Ingeteam's public datasheets (read October 6, 2026), not just the scenarios shown below.

  • Station size and capacity — a String Station holds 14 or 24 inverters, which gives the four listed models: SST 4620 (14 × 330TL M12), SST 4900 (14 × 350TL M12), SST 7900 (24 × 330TL M12) and SST 8400 (24 × 350TL M12), each with its listed power and AC current at 800 V. The plant's required capacity is compared with the stations ordered, and the stated total capacity and AC current must equal the listed values.
  • Medium voltage and site — the station is listed up to 33 kV output and its transformer and switchgear up to 52 kV, so 33 kV passes, above 33 kV up to 52 kV goes to a person and anything higher is blocked. The station operates from -20 C to +50 C and up to 4,000 m above sea level; above the temperature at which the datasheet gives rated power (40 C for the 330TL M12, 37 C for the 350TL M12) a person confirms the output.
  • String design — each inverter has 12 MPPTs with 2 inputs each: maximum DC voltage 1,500 V, MPP voltage range 850 V to 1,300 V, 22.5 A per input and 60 A short-circuit current per MPPT.

Any String Station order that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (Ingeteam publishes no price list, so this page shows no price build-up or line-item quote), Ingeteam's other inverters, storage, EV charging and wind products, transformer and switchgear sizing, grid-code compliance, derating curves above the rated temperature, and cable and plant layout. Assumptions: treating the MPP voltage range as a hard limit, and the approval steps for medium voltage above 33 kV and for temperatures above the rated-power temperature, are modeling choices, not Ingeteam rules.

The AI sales agentBuilds the String Station order from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
A station size that is only one of four listed modelsOnly with care
Station power depends on the inverter model and the inverter count together, so a rule or lookup per combination is needed and has to be kept in step with the datasheet.		The inverter model and count are in one request and the station rating is looked up and compared with the plant need and the stated figures on every call.
Stated capacity and AC current that must equal the listed valuesOnly with care
A figure typed by a rep has to be compared with a derived one, which is usually a separate validation rule per figure.		The stated figures are fields in the request and are compared with the computed values on every call.
Limits that depend on the site (altitude, temperature) and on the inverter modelOnly with workarounds
The temperature at which rated power applies differs by inverter model, so one rule reads the site and another reads the product, and a rep can miss the interaction.		Site conditions and the inverter model are checked together; above the rated temperature the order goes to a person.
String design limits from the inverter datasheetOnly with workarounds
Voltage, current and strings per MPPT are engineering limits on several numbers at once; they are usually checked in a separate design tool, not in the quote.		Every string limit is checked in the same pass as the order.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the quote is saved or a step is completed, so a rep often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1A String Station has 14 or 24 inverters (SST 4620, 4900, 7900 and 8400); the quote has 20 inverters per station.
2A String Station has 14 or 24 inverters (SST 4620, 4900, 7900 and 8400); the quote has 12 inverters per station.
3The plant needs 4,700 kVA of AC capacity but the stations give 4,620 kVA in total.
4The quote has 0 stations; at least one is needed.
5The plant needs 4,000 kVA of AC capacity but the stations give 0 kVA in total.
6The quote asks for 36 kV; the String Station is listed up to 33 kV output and the transformer alone up to 52 kV, so a person should confirm availability.
7The quote asks for 52 kV; the String Station is listed up to 33 kV output and the transformer alone up to 52 kV, so a person should confirm availability.
8The quote asks for 60 kV on the medium-voltage side; the transformer and switchgear are rated up to 52 kV.
9The site is at 4,500 m; the maximum altitude for the station is 4,000 m above sea level.
10The site ambient temperature is -25 C; the station operates from -20 C to +50 C.
11The site ambient temperature is 51 C; the station operates from -20 C to +50 C.
12The site ambient temperature is 45 C; the inverter datasheet gives rated power at 40 C, so a person should confirm the output at the site temperature.
13The site ambient temperature is 38 C; the inverter datasheet gives rated power at 37 C, so a person should confirm the output at the site temperature.
14The maximum string open-circuit voltage is 1,550 V; the inverter maximum DC voltage is 1,500 V.
15The string operating voltage is 800 V; the inverter MPP voltage range is 850 V to 1,300 V.
16The string operating voltage is 1,350 V; the inverter MPP voltage range is 850 V to 1,300 V.
17The string current is 23.0 A per input; the maximum is 22.5 A per input.
183 strings are connected to one MPPT; each MPPT has 2 inputs.
19The short-circuit current on one MPPT is 65 A; the maximum is 60 A per MPPT.
20The quote states 4,900 kVA in total; the listed station ratings give 4,620 kVA.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Station size: Two stations of 20 inverters each

    
The agent's request. Please quote 2 String Stations of 20 INGECON SUN 330TL M12 inverters each, for a plant that needs 15,000 kVA of AC capacity, with 30 kV on the medium-voltage side. The site is at 1,200 m altitude with a maximum ambient temperature of 30 C. The strings have a maximum open-circuit voltage of 1,400 V, operate at 1,000 V and carry 15.0 A, with 2 strings on each MPPT and a short-circuit current of 40 A on each MPPT. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Station size is not an available model. A String Station has 14 or 24 inverters (SST 4620, 4900, 7900 and 8400); the quote has 20 inverters per station.
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2. Station size: The agent resubmits after fixing the errors

    
The agent's request. Please quote 2 String Stations of 24 INGECON SUN 330TL M12 inverters each, for a plant that needs 15,000 kVA of AC capacity, with 30 kV on the medium-voltage side. The site is at 1,200 m altitude with a maximum ambient temperature of 30 C. The strings have a maximum open-circuit voltage of 1,400 V, operate at 1,000 V and carry 15.0 A, with 2 strings on each MPPT and a short-circuit current of 40 A on each MPPT. The order states 15,800 kVA in total and 5,712 A of AC output current per station. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Station summary. 2 stations of 24 inverters, 48 inverters in total, 15,800 kVA in total, 5,712 A AC output current per station at 800 V.
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3. Medium voltage and stated capacity: Three 350TL M12 stations at 60 kV with a stale capacity figure

    
The agent's request. Please quote 3 String Stations of 24 INGECON SUN 350TL M12 inverters each, for a plant that needs 24,000 kVA of AC capacity, with 60 kV on the medium-voltage side. The site is at 1,200 m altitude with a maximum ambient temperature of 30 C. The strings have a maximum open-circuit voltage of 1,400 V, operate at 1,000 V and carry 15.0 A, with 2 strings on each MPPT and a short-circuit current of 40 A on each MPPT. The order states 25,000 kVA in total and 6,000 A of AC output current per station. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Medium voltage above the transformer limit. The quote asks for 60 kV on the medium-voltage side; the transformer and switchgear are rated up to 52 kV.
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  • Stated total capacity does not match. The quote states 25,000 kVA in total; the listed station ratings give 25,200 kVA.
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4. Medium voltage and stated capacity: The agent resubmits after fixing the errors

    
The agent's request. Please quote 3 String Stations of 24 INGECON SUN 350TL M12 inverters each, for a plant that needs 24,000 kVA of AC capacity, with 36 kV on the medium-voltage side. The site is at 1,200 m altitude with a maximum ambient temperature of 30 C. The strings have a maximum open-circuit voltage of 1,400 V, operate at 1,000 V and carry 15.0 A, with 2 strings on each MPPT and a short-circuit current of 40 A on each MPPT. The order states 25,200 kVA in total and 6,000 A of AC output current per station. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Medium voltage above the 33 kV station output. The quote asks for 36 kV; the String Station is listed up to 33 kV output and the transformer alone up to 52 kV, so a person should confirm availability.
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  • Station summary. 3 stations of 24 inverters, 72 inverters in total, 25,200 kVA in total, 6,000 A AC output current per station at 800 V.
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5. Medium voltage and stated capacity: The agent resubmits after fixing the errors

    
The agent's request. Please quote 3 String Stations of 24 INGECON SUN 350TL M12 inverters each, for a plant that needs 24,000 kVA of AC capacity, with 33 kV on the medium-voltage side. The site is at 1,200 m altitude with a maximum ambient temperature of 30 C. The strings have a maximum open-circuit voltage of 1,400 V, operate at 1,000 V and carry 15.0 A, with 2 strings on each MPPT and a short-circuit current of 40 A on each MPPT. The order states 25,200 kVA in total and 6,000 A of AC output current per station. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Station summary. 3 stations of 24 inverters, 72 inverters in total, 25,200 kVA in total, 6,000 A AC output current per station at 800 V.
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6. String design: String design above the inverter limits

    
The agent's request. Please quote 2 String Stations of 24 INGECON SUN 330TL M12 inverters each, for a plant that needs 15,000 kVA of AC capacity, with 33 kV on the medium-voltage side. The site is at 1,200 m altitude with a maximum ambient temperature of 30 C. The strings have a maximum open-circuit voltage of 1,550 V, operate at 1,000 V and carry 15.0 A, with 3 strings on each MPPT and a short-circuit current of 70 A on each MPPT. The order states 15,800 kVA in total and 5,712 A of AC output current per station. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • String voltage above the inverter maximum. The maximum string open-circuit voltage is 1,550 V; the inverter maximum DC voltage is 1,500 V.
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  • Too many strings on one MPPT. 3 strings are connected to one MPPT; each MPPT has 2 inputs.
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  • MPPT short-circuit current above the limit. The short-circuit current on one MPPT is 70 A; the maximum is 60 A per MPPT.
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7. String design: The agent resubmits after fixing the errors

    
The agent's request. Please quote 2 String Stations of 24 INGECON SUN 330TL M12 inverters each, for a plant that needs 15,000 kVA of AC capacity, with 33 kV on the medium-voltage side. The site is at 1,200 m altitude with a maximum ambient temperature of 30 C. The strings have a maximum open-circuit voltage of 1,480 V, operate at 1,000 V and carry 15.0 A, with 2 strings on each MPPT and a short-circuit current of 47 A on each MPPT. The order states 15,800 kVA in total and 5,712 A of AC output current per station. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Station summary. 2 stations of 24 inverters, 48 inverters in total, 15,800 kVA in total, 5,712 A AC output current per station at 800 V.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares an order for a utility-scale solar plant built from INGECON SUN String Stations with 330TL M12 or 350TL M12 inverters: the station size, the number of stations, the medium-voltage output, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the limits in Ingeteam's public datasheets and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote 2 String Stations of 24 INGECON SUN 330TL M12 inverters each, for a plant that needs 15,000 kVA of AC capacity, with 33 kV on the medium-voltage side. The site is at 1,200 m altitude with a maximum ambient temperature of 30 C. The rest of the request is on screen. The order states 15,800 kVA in total and 5,712 A of AC output current per station.
    4. 
      
  4. Before it goes out, the agent calls the validator.
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  5. Blocked, with three findings, all in one answer. The maximum string open-circuit voltage is 1,550 V; the inverter maximum DC voltage is 1,500 V. 3 strings are connected to one MPPT; each MPPT has 2 inputs. The short-circuit current on one MPPT is 70 A; the maximum is 60 A per MPPT.
    6. 
      
  6. The validator returned three blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for string design limits from the inverter datasheet, a rules-based CPQ can do this only with workarounds.
    8. 
      
  8. Now the agent resubmits.
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  9. The corrected request. It changes the maximum string open-circuit voltage to 1,480 V, the strings per MPPT to 2 and the short-circuit current per MPPT to 47 A.
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  10. It calls the validator again.
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  11. This time the validator clears it.
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  12. All three earlier findings are cleared, and the validator's figure matches the quote.
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  13. Three problems caught in one call, fixed in one pass, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
    14.