planning

String planning for PV systems

Plan PV strings error-free and efficiently. With autarc, you can connect solar modules automatically, easily and flawlessly and check all parameters live. For maximum system performance.

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What is string planning?

String planning is the electrical connection of solar modules to strings for connection to inverters. It determines the number of modules, voltage and amperage per module row. Correct string planning maximizes yield and prevents technical problems. Factors such as module type, inverter compatibility, and installation conditions are considered.

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How does string planning work with autarc?

autarc automates the entire string planning based on your module assignment. The software calculates optimal string configurations and checks all technical parameters in real time. You will receive immediate feedback on the feasibility and efficiency of your planning. Inverter data is automatically included and individual MPPT settings are taken into account.

  • Step 1: Drag & Drop modules
  • Step 2: Live testing of all parameters
  • Step 3: MPPT optimization

Benefits of string planning with autarc

  • Error-free planning: Automatic testing prevents calculation errors and technical problems.
  • Save time: No more manual calculations — everything is automatically optimized.
  • Live feedback: Instant feedback on voltage, current, and inverter compatibility.
  • Temperature consideration: outdoor temperature and type of installation are included in the calculation
  • MPPT flexibility: Individual settings per maximum PowerPoint Tracking (MPPT) for optimal use.
  • Integrated solution: directly linked to roof planning and preparation of offers.

Are you interested? Just try it out for yourself.

Try it now

Which features are included?

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Easy string planning

Intuitive connection by clicking or dragging the modules. The software automatically recognizes optimal string configurations and suggests the best solution. Manual adjustments are possible at any time.

Mppt

Flexible MPPT settings

Inverters can be assigned individual values per MPPT, which are automatically taken into account when planning strings. This maximizes the efficiency of every single MPPT input for optimal yield.

Rates

Core
39€
/user/month
On an annual plan, annually in advance.
  • All basic features included (dashboard, offers, CRM, AI phone* and more)
  • Permanent personal contact
  • Email, phone, and live chat support
  • Configure with one of our experts
  • Weekly webinars with best practices

The core user fee is waived for companies that already have a valid subscription with autarc. *KI phone is charged additionally per minute.

PV planning
99€
/month
On an annual plan, annually in advance.
  • High-resolution 2D planning principles
    (satellite, aerial photos, 2D drone photos, construction plans)
  • Create 3D models with the photogrammetry service*
  • Importing and planning 3D models
  • System simulation and profitability calculation
  • Offer presentations in your branding
  • Database with PV modules, inverters and batteries

For companies that already have a valid subscription with autarc, there are different prices. *Photogrammetry service not included in the price.

Start professional string planning now

Optimize your PV planning today. Save time, avoid errors and maximize the efficiency of your photovoltaic systems. Try all features free of charge for 14 days.

Try it now
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Sting planning FAQ

How many modules can I connect per string?

Does autarc consider different module types in a project?

Can I use multiple inverters per project?

How are temperature effects taken into account in string planning?

Is string planning also suitable for small systems?

Can I change the string planning later?