Size the storage.
Show the tradeoffs.
Model the battery hour by hour against the customer’s usage, the proposed array and the utility tariff. Show everyday operation and outage performance with every assumption in view, including the ones that do not favor storage.
Power Explorer / Prepared product example
See where the energy goes.
- Usable storage
- 9.7 kWh
- Operating mode
- Self-consumption
- Backup reserve
- 0%
- Grid charging
- Disabled
Solar supplies the home. The surplus charges the battery.
One day. Every hour.
- Solar
- Home demand
- Grid import
Average kW
After sunset, stored energy supplies the home.
One day. Every hour.
- Solar
- Home demand
- Grid import
Average kW
Model the customer’s project
A full year, one hour at a time.
Powerlily follows solar generation, household use and battery state of charge through all 8,760 hours of the year. The dispatch respects usable capacity, charge and discharge limits, and conversion losses.
Set the operating mode, backup reserve and permission to charge from the grid. Then compare self-consumption, tariff optimization and peak shaving against holding the energy for backup.
Start with the solar design ↗- Customer consumption
- Use interval data where available, or model usage from monthly bills and load profiles.
- The selected array
- Use the project’s hourly solar output, or model a battery-only system with no PV at all.
- Equipment limits
- Model the AC- or DC-coupled bank with the usable energy and power limits on its equipment record.
- The utility tariff
- Energy rates, export credits, time-of-use periods and monthly demand charges all enter the model.
Power Explorer
Follow the energy through the day.
Open the current demo project in the product itself. Its design and assumptions may differ from the prepared example above.
Open the demo system
Power Explorer
The whole model, live on this page.
The interactive product loads here when you open this section. Inspect power flow, utility charges and the project’s supported outage scenarios.
Explain the recommendation
Backup and bill impact, each on its own terms.
Test an outage with the selected backup loads, starting charge and solar assumptions. Run it in January and again in July, and show the customer a covered test period rather than an unlimited-runtime promise.
For everyday use, compare energy and demand charges under the chosen operating mode. Reserve, grid charging and losses stay in the calculation, including when storage increases costs.
Outage scenarios
Solar availability, restart assumptions and household load stay visible. The simulation settles the energy question. The single-line diagram handles the electrical one.
Savings under the tariff
Time-of-use shifting and monthly demand peaks roll up into annual and longer-term projections.
A connected proposal
The selected battery, backup results and modeled bill impact sit beside the solar design in the same proposal.
Size a battery against a real bill.
We model the dispatch against a customer’s tariff and load, then show the backup and bill results side by side in the proposal.
