Battery modeling

Design and sell the right battery storage system with simulation-backed modeling

SolarVis simulates battery performance, self-consumption, backup scenarios, and ROI using real consumption and tariff data, enabling you to configure the optimal storage size for each project and give your customers a clear picture of their savings potential before installation.

Trusted by

01
What you get

Battery modeling that reflects real operation

One operating mode, one set of targets, one auto-sized capacity. Storage stays grounded in the customer's load profile and the array, not in nameplate kWh.

Use-case-driven sizing

Pick the operating mode: target self-consumption %, minimum backup hours plus critical load %, or target autonomy % for off-grid. Capacity falls out from PV production, hourly consumption, and your targets.

Hour-by-hour dispatch

State-of-charge limits, round-trip efficiency, and charge or discharge power constraints in every hour. Daily usage curves and state-of-charge profile, not just nameplate kWh.

Backup that knows your loads

Critical load percentage, backup reserve rate, and solar contribution to backup duration. The engine reports backup hours and usable backup capacity together, not in isolation.

Real-product database

Accept the auto-sized capacity or pick a specific battery model from the database. Compare alternatives side by side before applying the configuration.

Savings and ROI report

Turn dispatch and three-scenario bill modeling into a financial feasibility view: payback period, lifetime savings, and ROI your customer can trust before installation.

Built into 4-in-1 system design

Battery storage is one of the four components solarVis models together: PV, battery, heat pump, and EV charger. Sizing one rebalances the others, so your feasibility never goes stale.

See 3D system design
02
Deep dive

Storage modeled at the level the project requires

· 01Self-consumption dispatch

Self-consumption sized to the target rate you pick

Set a target self-consumption rate. The engine runs an hourly simulation against PV production and site load, then reports the monthly bill across three scenarios: before solar, with solar, and with solar plus battery. A month selector exposes seasonal differences hour by hour.

  • Targeted self-consumption rate as the sizing input
  • Three-scenario monthly bill comparison
  • Daily energy usage chart with month selector
  • Production, consumption, and state-of-charge in one view
See heat pump modeling
Battery
Suggest
Backup
Min backup13h
Critical load83%
Reserve rate52%
Suggested
Home Battery
13.5 kWh × 2
Total capacity27 kWh
Autonomy46.2%
Select manually
January · Utility bills
−15% vs. before
Before solar
709.87EUR
0 kWh
44.74 kWh
With solar
613.50EUR
1.96 kWh
39.11 kWh
Solar + battery
602.79EUR
0 kWh
37.35 kWh
Before solar
With solar
+ Battery
7204802400
JFMAMJJASOND
*VAT included in prices
· 02Backup and off-grid autonomy

Backup hours and off-grid autonomy modeled with critical loads

Backup mode sizes from minimum backup hours, critical load percentage, and backup reserve rate. Autonomy mode sizes for off-grid or zero-injection systems against a target autonomy percentage. Backup duration and usable backup capacity report solar contribution explicitly.

  • Self Consumption, Backup, and Autonomy as discrete operating modes
  • Critical load % and backup reserve rate as backup inputs
  • Backup hours include solar contribution explicitly
  • Off-grid and zero-injection systems supported by autonomy mode
See the proposal software
Estimated production & consumptionkWh
Annual production
1,662kWh
Annual consumption
10,910kWh
Self-consumption
1,662kWh
MonthsConsProdSelf
Jan1,1714242
Feb1,0199898
Mar945136136
Apr870172172
May837183183
Jun788243243
Jul830240240
Aug870206206
Sep752152152
Oct8129393
Nov9765353
Dec1,0444949
Production
Consumption
Self-consumption
JFMAMJJASOND
· 03Sizing alternatives

Auto-sized or manually picked, compared side by side

Take the auto-calculated capacity or override with a specific battery model from the product database. Compare candidate batteries against the same load and PV profile before applying the configuration, so the proposal carries the model you actually selected.

  • Auto-sized capacity from your operating-mode targets
  • Manual model selection from the product database
  • Side-by-side compare before applying
  • Selected model flows into the proposal and Bill of Materials
See tariffs and regulations
Annual Energy Consumption9,241kWh
Solar System
4,549kWh50%
Battery
1,849kWh20%
Grid
2,845kWh31%
Heat Pump
2,041kWh22%
Other Utilities
7,200kWh78%
03FAQ

Questions about battery modeling

Pick one of three operating modes: Self Consumption (target self-consumption %), Backup (minimum backup hours plus critical load %), or Autonomy (target autonomy % for off-grid). The engine runs an hourly simulation against PV production and consumption to calculate the required capacity, which you can accept or override with a specific battery model from the product database.

Get started

See solarVis in action

We use cookies to improve your experience

We use necessary cookies to run this site, plus optional analytics and marketing cookies if you let us. You can change your choice anytime from the footer. We respect your privacy choices wherever you are. Read our Cookie Policy