How much does it cost to install solar panels with batteries?
If you have ever thought about installing solar panels with batteries and would like to know what is the price of installing solar panels with batteries you are in the right place. With the drop in the price of lithium during these months, solar lithium batteries, both lithium batteries 12v and above and 24v lithium batteries and high voltage lithium batteries, are a very interesting option to add to your solar photovoltaic installation for the following reasons:
Factors influencing the price of installing solar panels with batteries
Size of the solar photovoltaic installation
Logically, the larger the solar installation, the lower the price per kW/p (kilowatt peak installed). Let me explain;
The price of the panel is linear in the budget, the more panels we put the price varies proportionally, so it does not include. On the other hand, there are other costs that are independent of the size of the installation. Therefore, the more kW installed, the lower the cost per kW/p installed.
These fixed costs are:
Building permit: (practically does not vary), it has a small variation depending on the budget, but the difference is minimal, almost negligible.
Electrical protections of the installation and wiring: It makes no difference whether 4 solar panels are installed or 24 solar panels are installed. The installation costs for wiring and electrical protections (including the inverter) are practically the same for both cases.
Then there are the variable costs:
Inverter: The higher the power, the higher the price, but not proportionally. The cost increases to a lesser extent than its power. An example with round numbers; A 3kW inverter may cost €500 but a 6kW inverter costs €650. We get twice the power but we do not have twice the costs.
Lithium battery: Although the price per module or per kW is fixed, the battery requires a battery management system (BMS), a rack cabinet, protections and wiring that does not vary much from a 2.4kW/h battery to a 15kW/h battery.
Battery type and capacity
And speaking of batteries, the most cost-effective lithium batteries will always be those with the highest capacity. If we divide the cost of the battery by its capacity, we can see how this constant decreases as the capacity of the battery under study increases.
If a pylontech US2000C battery 2.4kW/h costs €764. The price per kw/h comes to €318.33/kWh.
On the other hand, a pylontech US5000 battery of 4.8kW/h costs €1271. The price per kw/h comes to €264.78/kWh.
With the same capacity, place 2 pylontech batteries US2000C would cost 1528€ compared to 1 pylontech US5000 battery for 1271€. A saving of €257.
How much does an average installation of solar panels with batteries cost?
On average, an installation of solar panels with batteries costs between 7500€ and 8500€.
In our case and although this price varies over time, today, 9 September 2024, the price of an installation of solar panels with batteries with a power of 3kW huawei sun2000-3ktl inverter + 6 solar panels Jinko of 590W with Huawei Luna2000 5kWh lithium battery costs exactly € 7822.68 incl. VAT. A more than reasonable price considering the advantages of a physical battery over a virtual battery.
Long-term profitability: Savings and return on investment (ROI)
The profitability of an installation of solar panels with battery is even faster than an installation without battery. The solar surplus is used kW/h by kW/h saving the losses due to conversion and storage. Compared to the traditional surplus compensation, it is a more profitable option than the classic virtual batteries, but with the disadvantage of a higher initial investment.
In a future article, we will compare physical battery vs. virtual battery so that you can understand all the details that need to be taken into account before opting for a system with physical battery or virtual battery.
Financing and payment options
At ICIDE Energía we work with Cetelem and we can finance the installation of solar panels with batteries for up to 10 years. With a current interest rate of 6.95% APR. It is also very possible that we can fit this installation in one of the modalities of aid or subsidy for solar panels.
Is it worth investing in a photovoltaic system with batteries?
Yes, we have been encouraging this type of installation for years, even if we are connected to the electricity grid and can compensate for solar surpluses, it is advisable to have your own physical battery.
As an example we show you this installation that we made in 2014. Our client, in this case had a controlled energy consumption, but still wanted to reduce it to a minimum and decided to install in 2014 an installation with solar batteries to reduce its carbon footprint and contribute to the improvement of the environment.
In this case, 10 230W solar panels were installed together with two inverters, a 3Kva Victron and a 2300W SMA Sunny Boy model.
Subsequently, the customer decided to extend his installation with a 2nd inverter connected in parallel to the Victron, thus achieving a power of 6Kva + the 2.3Kva of the SMA inverter.
Since he had a battery, he was able to make use of the surpluses in his installation right from the start.
If you would like to know how much a solar panel installation with battery costs in your specific case, request a free quote by clicking on the following link;
