Add a battery to the plan

Adding a battery changes self-consumption, autarky, and the energy balance. This page covers adding and sizing it on the plan. For what the battery does to the energy flows and the economics, see Energy flows and Profitability.

Before you start

• The battery model has to be available in your component list first. An admin sets these up. If the battery picker is empty, no battery storage type has been added yet.
• Decide whether to add the battery to the current variant or to a new variant. Adding it as a separate variant lets you show the customer "solar" next to "solar + battery" side by side.

Add the battery

1. Open the offer, select the variant, and go to the Planning > Battery section.
2. Choose Add battery and pick a battery package from the picker. The package bundles the capacity and pricing.
3. The battery's capacity (kWh) comes from the component you pick. It is set by the chosen component, so to change the capacity, pick a different battery component.
4. Save. The price recalculates and the simulation updates to include storage. To set how the system is paid for, use the variant payment step. Payment is set at the variant level, not per component (see below).

Pro tip: To find the right battery size for a given solar yield, pick a battery component, read the resulting self-consumption in the simulation, and try a different component if needed. Comparing two variants side by side is the cleanest way to show the customer the trade-off.

Things to know

• Charge and discharge efficiency come from the component. A battery component carries charge-efficiency and discharge-efficiency fields. Enter the manufacturer's real figures on the component when accuracy matters; leave them blank to use standard efficiency values.
• Payment is set at the variant level, not per component. Use the variant payment step to choose how the variant is paid for. To compare financing options, build separate variants.
• The battery is fixed onto the offer when it is signed. The battery size, payment mode, and pricing are locked onto the signed offer. To change the battery after signing, duplicate the variant.
• Adding a battery does not add an installation checklist item on its own. If you want a "confirm battery installation location" item, add it to the checklist yourself.

Related

• Plan a wallbox uses the same "add a component to the plan" pattern.
• Plan variants lets you add the battery as a new variant to compare with and without storage.
• Energy flows shows how the battery shifts the household energy balance.
• Profitability covers the battery's economics and self-consumption impact.
• Additional components covers non-simulated hardware like cabinets and backup boxes.

Need help?

• Step-by-step questions about this flow → contact your Reonic account manager.
• Feature requests or something missing → drop a note to your account manager.
• Bug reports → include a screenshot and the URL where it happened in your support email.

Last updated on August 4, 2026