Energy flow
3 WIdle
8.1 kWDischarging
5.4 kWActive
2.5 kWExport
5.4 kWConsumption
Up to 19 000 zł of PME2 support
Energy storage with the PME2 subsidy
Earn on energy trading at dynamic prices. The system buys energy when it is cheap and uses it at home or exports it to the grid when it is dearer. Automatically, in line with your consumption and billing terms.
Applications open 20 October 2026 – 1 October 2027 or until funds run out.
Finance
Today's savings
+63.81 PLN
Since midnight+2.80 PLN
Forecast+61.01 PLN
- Baseline cost avoided+10.48+36.10
- Grid import cost-9.78-12.11
- Export revenue+2.18+38.01
- Battery wear-0.08-0.99
- Savings+2.80+61.01
Schedule
Best spread today: buy around 13:00 at 0.26 PLN/kWh, sell around 19:00 at 1.25 PLN/kWh.
Purchase priceSale priceSOC
19:00Buy 1.45 PLNSell 1.25 PLNSOC 30%
How much does energy storage with installation cost?
Three example configurations.
PME2 requires a storage capacity of at least 10 kWh and at least twice the PV installation power.
15.28 kWh
For PV installations up to about 7 kWp
- Price with installation
- 37 108 zł
- PME2 subsidy
- −9 362 zł
- Cost after the subsidy
- 27 746 zł
- Usable capacity
- 15.28 kWh
- Continuous power
- 7.2 kW
- Backup power
- Three-phase, 7.2 kW
Included: energy storage, inverter, Hombee Energy, installation and commissioning
Most popular
30.56 kWh
For PV installations up to about 15 kWp
- Price with installation
- 50 155 zł
- PME2 subsidy
- −12 875 zł
- Cost after the subsidy
- 37 280 zł
- Usable capacity
- 30.56 kWh
- Continuous power
- 12 kW
- Backup power
- Three-phase, 12 kW
Included: energy storage, inverter, Hombee Energy, installation and commissioning
45.84 kWh
For PV installations up to about 22 kWp
- Price with installation
- 62 470 zł
- PME2 subsidy
- −16 000 zł
- Cost after the subsidy
- 46 470 zł
- Usable capacity
- 45.84 kWh
- Continuous power
- 18 kW
- Backup power
- Three-phase, 18 kW
Included: energy storage, inverter, Hombee Energy, installation and commissioning
We tailor the final configuration to your installation, your energy use and the backup scope you need.
Before we choose the storage, we assess the whole home energy system
PV power, the inverter, your billing model, energy use, purchase and sale terms, and the circuits that must keep running during an outage. Only then do we choose the capacity, power and configuration of the system.
How much energy the roof produces
The size of the array sets the minimum storage capacity PME2 requires and shows how much summer surplus there is to store.
Which inverter the home runs on
The inverter model and power decide how we connect the storage to the existing installation and how both devices cooperate during a grid outage.
Net metering or net billing
The billing scheme decides whether it pays more to use energy on site or to sell it during the most expensive hours.
How much energy the home uses, and when
Annual consumption and its daily profile show which capacity really covers evenings and nights without buying from the grid.
What you pay and what you get per kWh
Your tariff and hourly prices set when it pays to charge the storage from the grid and when to export energy.
What must keep running in an outage
We decide which circuits switch to storage power, from the fridge and heating to the whole house. That sets the system power you need.
Not just capacity. Configuration matters.
We decide where the system charges the storage from, when it powers the home, when it can export energy to the grid, and which circuits are covered by backup power.
Hombee Energy connects photovoltaics, storage, the home and the grid into one system. The algorithm analyses production, consumption, the storage level and the purchase and sale terms, and directs the energy flow on that basis.
Change the settings and watch the storage day change
- Storage level
- Outage reserve
- Energy sold
- Energy bought
- Purchase price
- Sale price
- Energy bought
- 0.0kWh
- Energy sold
- 38.2kWh
- Daily savings
- +42.50zł
Illustrative simulation for the 30.56 kWh kit, a sample day with hourly prices and typical household consumption. We tune the real settings to your installation, tariff and habits.
The hardware it runs on
Inverter
Victron MultiPlus-II
Inverter and charger in one. During a grid outage it switches the home to storage power in under 20 ms, so appliances keep running without interruption.
Our installation
Three-phase installation
Three MultiPlus-II inverters above Lynx distributors in one of our installations. Each phase has its own inverter, so backup power covers all three phases.
Controller
Victron Cerbo GX
Collects data from the inverters, batteries and meter. Hombee Energy hands it the decisions: when to charge, when to power the home and when to sell energy.
Buy energy cheap. Sell it dear. Automatically.
Hombee Energy analyses energy prices, PV production, home consumption and the storage level. It then decides automatically when to buy, keep, use or sell energy.
Example 01
PV surplus
In the middle of the day the home uses less energy than the PV installation produces. The system sends the surplus to the storage and uses it to power the home later.
Example 02
Cheap grid energy
When the energy price is favourable, the system can charge the storage from the grid. It accounts for the expected home consumption, PV production and the current state of charge.
Example 03
Expensive energy
When buying from the grid is expensive, the system powers the home from the energy stored earlier. If the configuration and billing terms allow it, it can also sell energy back to the grid.
You do not have to track prices or control the storage by hand. The system does it automatically according to the configuration you set.
Since I switched to the dynamic tariff I produce more energy than I use, and I already have 1 100 zł sitting on my deposit. Since February I basically pay only the distribution fees. The system juggles energy really well. When the forecast says sunshine and exchange prices scrape the bottom, it does not push the PV surplus to the grid, it waits for a better price. A real speculator.
During an outage the system switches the home to storage power
We design the backup scope for your specific installation. It can cover selected circuits or the whole home, depending on the system power, the storage capacity and the demand of your appliances.
Internet. Fridge. Lighting. Gate. Heat pump. Any other device that has to keep running. Before the offer we agree exactly what the backup covers. The runtime depends on the energy available in the storage and the current consumption.
PME2 sets the minimum capacity. We size the rest of the system.
The programme requires a nominal storage capacity of at least 10 kWh and no less than twice the peak power of the PV installation.
PV installation 5 kWp
10 kWh
minimum storage capacity
PV installation 8 kWp
16 kWh
minimum storage capacity
PV installation 10 kWp
20 kWh
minimum storage capacity
That is the programme minimum. The final selection also accounts for home consumption, the required power, the billing model and the backup scope.
Victron certified software integrator. One contractor for the whole system.
Hombee is a Victron certified software integrator. We design, install and commission the system as a whole: storage, inverter, energy management and backup power.
Your offer includes a specific configuration, the price, the scope of work, and the warranty and service terms.
From installation details to a running system
Five steps from the first details about your installation to the documents you need for the application.
- 1
We assess the installation
PV power, the inverter model, your billing model, energy use and the backup scope you expect.
- 2
We design the configuration
We choose the storage capacity, system power, the way it works with your photovoltaics, the backup and the rules for automatic energy management. We also calculate the possible PME2 subsidy.
- 3
You get a specific offer
We show the configuration, the gross price, the installation scope, the calculated subsidy and the cost after you receive it.
- 4
We install and commission
We install the devices and configure Hombee Energy, the backup power and the operating rules of the system.
- 5
We prepare the PME2 documentation
We prepare the documentation for the installation we delivered and list the documents you need to complete on your side. The offer defines how much we help with the grid operator notification and the application.
Prefer to talk?
In a short call we go through your photovoltaics, energy use and the circuits that must keep running during an outage. We also explain which details we need to calculate the subsidy.
Up to 19 000 zł of support. Calculated for your configuration.
We never assume the maximum subsidy. We first check your billing model, the storage capacity, the cost estimate and the devices. Then, for a specific kit, we show the calculated support and the cost after the subsidy.
up to 16 000 zł
energy storage
Under net-billing the storage subsidy can reach 16 000 zł, under net-metering 8 000 zł. The exact limits are in the questions below.
up to 2 000 zł
extra support
Extra support may apply, among other cases, to an eligible EU-made energy storage or to a required replacement of the inverter with a hybrid or equivalent EU-made device.
up to 1 000 zł
heat storage
The programme also provides support for an eligible EU-made heat storage.
In total the programme provides up to 19 000 zł of support per point of energy consumption. The full amount requires meeting the conditions of every component. Not every kit automatically receives 19 000 zł.
PME2 requires a system, not just a battery
The storage must work with an energy management system (EMS) and support island mode, which means backup power. We include both at the system design stage.
You know the amount before you order
With the offer we show the system price, the calculated subsidy, the cost after you receive it, and the assumptions behind the calculation.
Choose your storage. See the price and the subsidy.
Tell us the basics about your installation. We will check which configuration fits your home and how much support you can receive.
- A kit proposal matched to your installation
- The gross price with installation and commissioning
- The calculated PME2 subsidy and the cost after you receive it
Frequently asked questions
How much does energy storage with installation cost?
The price depends on the capacity, power, devices and installation scope. For our kits we show the gross price of the complete configuration. After we assess your installation, we confirm the scope of work and the final offer.
Does every kit receive the 19 000 zł subsidy?
No. We calculate the subsidy for a specific cost estimate and your situation. The full 19 000 zł requires a sufficient level of eligible costs and meeting the conditions of every component that makes up the maximum support.
Can I use PME2 on net-metering?
Yes. The programme also supports prosumers on net-metering. The storage subsidy limit is then 8 000 zł. We check the remaining conditions for your installation.
Which limits apply when the subsidy is calculated?
The storage subsidy cannot exceed 30% of eligible costs or 800 zł per 1 kWh of nominal capacity. The purchase and installation price of the storage, excluding auxiliary devices, cannot exceed 3 000 zł per 1 kWh. The extra support of up to 2 000 zł and up to 1 000 zł for heat storage has its own conditions, which we check with the offer.
I already have photovoltaics. Do I need to replace the inverter?
Not always. We check your current inverter model and whether it can work with the storage. If a replacement is needed, we include it in the designed configuration.
How do I size the storage for my PV installation?
PME2 requires a capacity of at least 10 kWh and at least twice the PV installation power. That is only the programme minimum. When sizing the system we also account for your energy use, the required system power, the billing model and the backup scope you expect.
Can Hombee Energy buy and sell energy automatically?
Yes, when the system configuration and your billing model allow it. The algorithm can plan charging the storage, using energy at home and exporting it to the grid, based on prices, PV production, consumption and the storage level.
Do I have to track energy prices myself?
No. The system analyses the operating conditions and controls the storage automatically according to the configuration you set.
Will energy storage lower my bill?
It depends on your consumption profile, PV production, tariff, billing model and system parameters. Storage lets you use your own energy later and, under suitable conditions, buy from the grid in cheaper hours.
Will the storage power the whole home during an outage?
It can, but it depends on the configuration. Before we prepare the offer we agree which circuits the backup covers. The storage capacity, the system power and the demand of each device all matter.
How long can the home run from the storage during an outage?
It depends on the energy stored and the current consumption of the home. That is why we design the backup scope together with the system configuration, not during installation.
What do I need to prepare for the subsidy?
Among others, documents about the installation and the grid connection, invoices, payment confirmations, and the device and acceptance documentation. We prepare the documents for the system we delivered and list what you need to complete on your side.
Is Hombee a Victron certified software integrator?
Yes. Hombee is a Victron certified software integrator. We select, install, configure and commission the complete system.
