Sunlit EV3600 Bidirectional Inverter: How It Works, Benefits, and Applications

The Sunlit EV3600 is a bidirectional inverter module for balcony power plant storage systems and small PV systems, which can convert direct current from batteries and solar modules into household alternating current and store it in reverse. Thanks to its bidirectional technology, it is particularly suitable for combinations of balcony power plants, home storage systems, wallboxes and dynamic electricity tariffs to increase self-consumption, self-sufficiency and emergency power capability.

Technical Basis: Structure and Core Functions of the Sunlit EV3600

The Sunlit EV3600 combines a powerful bidirectional inverter with a power processing module that can process both PV energy and grid power. It supports bidirectional conversion from DC to AC and back, so that energy can be charged into or discharged from the storage system depending on the situation.
The nominal power of the device is up to approximately 2.4 kilowatts of output power via the sockets, while an additional connection can provide a charging power of up to 3.6 kilowatts for a compatible wallbox. Typically, the Sunlit EV3600 operates with an output voltage of 230 volts, an output frequency of 50 hertz, and an efficiency in the range of 92 percent.

The input voltage is based on the compatible Sunlit battery system, with a typical voltage range of around 33.6 to 43.2 volts and a maximum input current of approximately 120 amperes. The device is designed for stationary use and has an IP44 protection rating, which means it is protected against splashing water and solid foreign objects to a limited extent. In practice, this means that the inverter can be used, for example, in garages, carports or weather-protected outdoor areas, as long as the manufacturer's specifications for installation and environment are observed.

Market Trends: Bidirectional Inverters, Balcony Power Plants and Electromobility

The Sunlit EV3600 bidirectional inverter is an exemplary representation of a clear trend in the home storage market towards flexible, modular solutions for balcony power plants, small PV systems and electromobility. Several developments are driving this trend:

• Increasing spread of balcony power plants and plug-and-play PV systems in urban areas.

• Growing demand for emergency power and island operation to continue operating critical household appliances in the event of power outages.

• Integration of home storage and wallboxes for intelligent use of PV electricity and dynamic electricity tariffs.

• Political frameworks such as tax breaks for certain PV components, which make investments more attractive.

Dynamic electricity tariffs are gaining importance because they allow customers to specifically charge the storage unit with grid electricity during times of very favorable wholesale electricity prices. Bidirectional inverters like the Sunlit EV3600 thus become central components for shifting consumption loads into these favorable time windows and thus reducing electricity costs.

At DRBO Greenenergy, we pursue a clear goal: to drive the decentralized energy transition together with our customers. We already supply numerous hardware stores, specialist retailers and installation companies with high-quality solar and energy storage solutions and are increasingly supporting private customers in increasing their self-consumption and making clean energy easily usable with balcony power plants, storage systems and bidirectional inverters such as the Sunlit EV3600.

Top Products and Variants for the Sunlit EV3600

Various product variants and complete solutions are available for the Sunlit EV3600 bidirectional inverter, often in combination with the Sunlit BK215 balcony power plant storage or expansion modules. The following table summarizes typical product offerings and their focuses.

Overview of Relevant Product Concepts

Many users highlight that the Sunlit EV3600 bidirectional inverter with its sockets, wallbox interface and app control covers a very wide range of applications and is suitable for both beginners and tech-savvy users.

Competitive Comparison: Sunlit EV3600 vs. Other Bidirectional Solutions

The market for bidirectional inverters and compact home storage solutions is growing rapidly, particularly in the segment of balcony power plants and small PV systems. The following matrix classifies the Sunlit EV3600 in comparison to typical competing products (generic names for competitors, as specific brand names vary greatly).

Comparison Matrix for Bidirectional Inverters in the Balcony Power Plant Segment

The special added value of the Sunlit EV3600 bidirectional inverter lies in the fact that it is specifically designed for balcony power plants and compact storage systems, yet offers capabilities otherwise known from classic home PV systems, such as emergency power, island operation and wallbox connection.

Core technology of the Sunlit EV3600: Bidirectionality, island operation and smart control

The technical feature of a bidirectional inverter is that it takes on both the role of a classic PV inverter and partly that of a charger. In the Sunlit EV3600 bidirectional inverter, this is reflected as follows:

• PV power and stored DC current are converted into AC current for household appliances or a wallbox.

• Conversely, AC current from the grid can be converted back into DC current for the battery storage system via the inverter, especially when electricity prices are low.

• In island mode, connected loads are supplied directly from storage and PV, without connection to the public grid.

The integrated emergency power function is another key component of the technology. In the event of a power outage, the Sunlit EV3600 bidirectional inverter disconnects from the grid and continues to supply defined sockets or connected devices from the storage unit. This means, for example, that refrigerators, routers, lighting or smaller home electronics can continue to operate.

Parameters such as charging times, discharge limits or strategies for dynamic electricity tariffs can be configured via the Sunlit Solar App. Users can thus specifically determine at what times the storage unit should be charged with grid electricity and when the energy should preferentially be released again to optimize costs.

Real application cases and ROI with the Sunlit EV3600

In practice, the Sunlit EV3600 bidirectional inverter is mainly used in three typical scenarios: as an extension of a balcony power plant, as an emergency power and island solution, and as a link between storage and electromobility.

1. Balcony power plant with storage optimization
   A user operates a balcony power plant with 600 to 800 watts of feed-in power and supplements it with a Sunlit BK215 storage unit and the Sunlit EV3600. During the day, surplus PV electricity is charged into the storage unit; in the evening and at night, the inverter supplies household appliances via the Schuko sockets or the house grid. By shifting self-consumption to the evening hours, electricity costs can be significantly reduced, especially if a lot of grid electricity was previously purchased at high prices.

2. Emergency power solution for critical consumers
   In regions with unstable power supply or for users who attach particular importance to supply security, the Sunlit EV3600 is used as an emergency power solution. In the event of a public grid failure, the inverter takes over the supply via the sockets, so that refrigerators, routers, medical devices with low power requirements or lighting can continue to operate. The possibility of island operation also allows smaller off-grid projects such as garden sheds, workshops or holiday properties to be realized.

3. Integration with e-mobility and dynamic tariffs
   For e-car drivers, the Sunlit EV3600 is interesting because it has a special connection for an Aurora wallbox and, in combination with storage and PV modules, enables flexible charging strategies both during the day and at night. In conjunction with a dynamic electricity tariff, the storage unit can be specifically charged during periods of low electricity prices and later used to charge the vehicle or supply the household. This increases the return on investment because cheaper energy purchased replaces expensive peak loads.

Concrete savings potential depends on local electricity prices, the individual consumption profile, the size of the PV system and storage, and the use of dynamic tariffs. Nevertheless, the combination of a balcony power plant, storage and Sunlit EV3600 bidirectional inverter shows in many practical reports that the additional investment can pay off in the medium to long term, especially with rising energy prices.

Buying guide: Who is the Sunlit EV3600 suitable for?

Whether the Sunlit EV3600 bidirectional inverter is the right solution depends on your own goals, the building and the existing energy system. The following points help with orientation:

• Ideal if a Sunlit BK215 or compatible storage unit is already available or planned and a balcony power plant is operated.

• Particularly useful for users who want emergency power capability and island operation for selected consumers without installing a large rooftop PV system.

• Attractive for e-car drivers who want to integrate an Aurora wallbox or a compatible charging station into a compact energy system.

• Recommended for households with dynamic electricity tariffs who want to actively shift their loads to periods of low prices.

The Sunlit EV3600 is less suitable if a large house inverter with storage and comprehensive smart home integration is already in use, or if only a simple feed-in solution without storage is sought. In such cases, a classic string or hybrid inverter may be more economical.

After purchase, it is important to have the installation checked or carried out by a qualified specialist company, especially if a fixed grid connection, two-phase expansion or wallbox connection is planned. This ensures that all legal requirements, standards and safety requirements are met.

Future prospects: Vehicle-to-Home, Smart-Home and grid serviceability

Bidirectional inverters such as the Sunlit EV3600 are considered precursors of comprehensive Vehicle-to-Home and Vehicle-to-Grid integration in the home sector. While the Sunlit EV3600 today primarily works with stationary storage units and charges e-cars via a wallbox, similar concepts show that direct feedback from vehicle batteries into the house grid could also become possible in the medium to long term.

At the same time, the importance of intelligent load control and smart home integration is growing. The Sunlit EV3600 bidirectional inverter already offers app-based energy management, with which users can specifically control charging strategies, profiles and energy flows. In the future, such systems are expected to be networked even more strongly with smart home platforms, heat pumps, air conditioners and other consumers.

Another trend is the grid-serving use of home storage units and inverters, for example by providing control energy or participating in aggregator models. For this, legal and technical frameworks must be further developed, but bidirectional devices such as the Sunlit EV3600 already create the technical basis for such services.

Three-stage conversion funnel with calls to action (no links)

1. Information phase
   Prospective customers should first check their household consumption, whether a balcony power plant or a small PV system is already available, and whether they can benefit from emergency power, island operation or dynamic electricity tariffs.

2. Planning and decision phase
   In a second step, it is advisable to compare and coordinate typical components such as Sunlit BK215 storage units, the Sunlit EV3600 bidirectional inverter, a suitable wallbox and, if necessary, expansion modules. Connection power, storage capacity, installation effort and budget should be carefully evaluated.

3. Implementation phase
   After product selection, implementation follows with the support of a specialist company that plans the installation location, connection concept, protective measures and integration into the house network. The system is then adapted to the individual consumption profile via app and energy management to achieve maximum savings and high comfort.

Frequently asked questions about the Sunlit EV3600 bidirectional inverter

Question: What exactly is the Sunlit EV3600 bidirectional inverter?
Answer: The Sunlit EV3600 is an extension module for Sunlit storage systems that functions as a bidirectional inverter and power processing module, capable of controlling both PV and grid electricity towards the household and towards the storage unit.

Question: Which storage systems is the Sunlit EV3600 compatible with?
Answer: The device is primarily designed for use with the Sunlit balcony power plant storage units BK215 and the associated expansion storage units and can be used in various storage configurations from approx. 2.15 to 8.6 kilowatt hours.

Question: What emergency power functions does the Sunlit EV3600 bidirectional inverter offer?
Answer: The inverter has two 230-volt Schuko sockets that can be supplied with power from the storage unit and the connected PV modules in emergency power and island operation, so that selected devices continue to operate even in the event of a power outage.

Question: Can the Sunlit EV3600 charge my electric car directly?
Answer: The Sunlit EV3600 itself does not provide a Type 2 connection, but offers a CEE16 or special connection for an Aurora wallbox, through which an e-car can be charged with up to 3.7 kilowatts in island operation or up to 11 kilowatts in grid operation.

Question: Can the Sunlit EV3600 be used with dynamic electricity tariffs?
Answer: Yes, the inverter can specifically charge the storage unit with grid electricity when electricity prices are low, and provide energy for the household or wallbox during more expensive times, which is particularly useful in conjunction with dynamic tariffs.

Question: What role does DRBO Greenenergy play in such solutions?
Answer: A provider like DRBO Greenenergy supports private customers, specialist dealers and installation companies with suitable balcony power plants, storage units, bidirectional inverters and accessories, so that systems based on products such as the Sunlit EV3600 can be planned technically soundly and implemented economically.

Question: How complex is the installation of the Sunlit EV3600 bidirectional inverter?
Answer: Mounting on a compatible storage unit is relatively easy, but grid connection, two-phase extensions and the integration of a wallbox should always be checked or implemented by a qualified specialist company.

Question: Can the Sunlit EV3600 be used without a grid connection?
Answer: Yes, the system can be operated as a pure island system and, for example, supply a garden shed or a remote hut with PV electricity from storage and modules, without being connected to the public grid.

Question: What maintenance does the Sunlit EV3600 bidirectional inverter require?
Answer: Apart from regular visual inspections, checking the ventilation openings and monitoring via the app, little maintenance is usually required with proper installation; exact specifications can be found in the manufacturer's documentation.

Question: How does the Sunlit EV3600 differ from a classic PV inverter?
Answer: Unlike purely feed-in devices, the Sunlit EV3600 can also absorb grid electricity, specifically charge the storage unit, operate in island mode and, via sockets and a wallbox interface, represent very flexible usage scenarios.

Sources

• pv magazine Germany: Report on Sunlit Solar and EV3600, technical key data, emergency power and tariff functions, 2024.

• Preishouse: Product description SunLit EV3600, notes on tax benefits, 2024.

• Idealo: Product data SunLit EV3600 bidirectional inverter (technical specifications), 2026.

• Mein Heimwerker Blog: Practical report Sunlit EV3600, application scenarios and user perspective, 2025.

• Globus Baumarkt / SunEnergyXT Island Solution EV3600: Description as emergency power and balcony power plant supplement, 2026.

• Solar4all: SunLit EV3600 bidirectional inverter module, detailed function description, 2020.

• Dachbaustoffe: SunLit Solar BK215 and EV3600 inverter module, description as expansion module, 2024.

• Solarscouts: Description of SunEnergyXT EV3600 as a bidirectional inverter for balcony power plants and storage, 2024.

• YouTube Review Sunlit EV3600: Video report with installation and function examples, 2025.

• Venova: Sunlit Island Storage EV3600 – Bidirectional Inverter, product description, 2023.

Some of the information in this article comes from the internet. Product specifications may be updated at any time. For the latest information, please visit the official website or product page.