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Battery storage.
From idea to grid.

A calculation is the start. A built project is the goal. BESSPLAN connects what is otherwise spread across spreadsheets, emails and separate tools.

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Kunststoffwerk Ilmtal

Commercial storage, 98693 Ilmenau, Ilm-Netz GmbH

Example data

Energy costs 814,800 € → 680,800 € per year

€ per year, Nordvolt Systems NV-600/1200
0 €500 k€1.0 M€815 k€Cost before−112 k€Peak shavingPeak −600 kW−25 k€Dynamic tariff0.60 ct/kWh cheaper−8 k€PV self-consumption96 % used on site+11 k€Storage costsMaintenance, operation681 k€Cost afterSavings 145,000 € per year

From load profile
to grid connection.

How to move your customer’s storage project forward. Compare storage options, explain the decision, prepare the grid connection and coordinate delivery, all with the same project data.

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Business case

Consumption becomes a decision.

Which storage size suits your customer? BESSPLAN combines the actual load profile with a comparison of concrete storage options.

A short product tour in four chapters. Just keep scrolling.

Customer report

Figures your customer understands.

The calculation stays the same. The customer report turns it into a clear comparison: what does the storage change, and when does it pay for itself?

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Grid applications

Enter once. Use it in the application.

Site, contacts and plant data belong to the project. BESSPLAN reuses this information in the grid connection request. You see what is already there and what is still missing.

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Project management

One project. One clear next step.

A good business case alone does not connect a storage system to the grid. The project overview shows what is missing next. Tasks show where your team is needed.

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Load profile

35,040 values. A full year of power.

Every quarter hour from 1 January 2025 to 31 December 2025. Every further figure is based on this load profile of your customer.

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Options

Three storage systems. Side by side.

Selected: 600 kW / 1,200 kWh. €405,000 investment, €145,000 savings per year, paid back after 3.0 years.

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Before and after

1,480 becomes 880 kW.

The storage reduces the peak load by 600 kW. Without and with storage come from the same simulation.

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Cash flow

The investment. And its way back.

€405,000 investment, paid back after 3.0 years. That is exactly where the cash flow reaches break-even.

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Check fields

Prefilled instead of retyped.

42 of 62 fields come from the project, such as the applicant. Red shows what is still missing, for example the apparent power (kVA).

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Form

From project to form.

Recipient and applicant appear in the finished form. In the example it has been submitted to Ilm-Netz GmbH, reference NAB-2026-02731.

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Overview

What is missing comes first.

Next: Site visit (Site planning), then Single-line diagram draft (Electrical planning).

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Tasks

The blocker becomes concrete.

The building permit is waiting for site planning. Only once that is done can it move on.

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Ask instead
of searching.

One sentence is enough. The project assistant answers from the project and the regulations, reads files and suggests changes that you review before applying them.

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Project assistant
The grid compatibility check takes 16 weeks for us.
Kunststoffwerk Ilmtal in context
Checking the project …
Here is how I understood you: the duration of the grid connection process is set to 112 calendar days.
Grid connection processDuration 112 days
Effect: construction, commissioning and everything after move back by the same time.
ApplyDecline
Project board
Which project needs attention first?
7 projects, industry in context
Molkerei Allgäu Nord first: the electrical design is blocked and the grid connection process is waiting behind it. Then the two ongoing connection processes.
Molkerei Allgäu NordElectrical design blocked
Härterei BergstraßeGrid connection process
Gießerei LahnGrid connection process
Changes go to the respective project and are approved there.
Project assistant
The load profile is uploaded.
Lastgang_2025_15min.csv in context
Read from the file, full year 2025:
Peak load1,480 kW, 11 Feb 2025 11:00
Grid consumption4.2 GWh
Values35,040 quarter hours
PV in load profile570 MWh detected
Upload load profiledone
The storage simulation runs with it in the background.
Applications
Prepare the grid connection request for Ilm-Netz.
Customer file, plant model, sizing in context
Form E.1 medium-voltage grid connection request, prefilled from the project:
Grid operatorIlm-Netz GmbH
Connection capacity2,000 kW, medium voltage
Storage600 kW / 1,200 kWh
Existing PV600 kWp
Print / PDFAs file

Same project.
Less work.

The platform simplifies the preparation. On request, our engineering team takes over the grid connection, electrical design and tender.

Prepare grid connection documents

Schematic project timeline
Project planner using BESSPLAN on a laptop in the office. AI-generated illustration.
For your team

Good projects
need people.

BESSPLAN connects the work on site, at the planning desk and in the project, so everyone knows the next step.

Frequently asked questions

More answers
Who is BESSPLAN for?

For electrical and solar contractors, planning offices and project developers who plan battery storage for their customers or their own sites. Sizing, customer documents and project management come together in one workspace.

What does BESSPLAN add to Excel?

Besides the calculation you get a customer report, prepared application documents and a shared project status. Your team works with the same data, tasks and deadlines.

Do I need a load profile for the demo?

No. We show you BESSPLAN with an example project. To size a commercial storage system later, you use your customer’s load profile and electricity bill.

Can I hand off individual tasks?

Yes. You can commission the grid connection, electrical design or tender, for example. You receive the scope and a fixed price before you place the order.

Let’s get your next
storage project moving.

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