How does it work? A solar system with a battery energy storage system (BESS) provides power for your Wi-Fi, router, modem, laptop, and lighting during outages. With 1-5 kW kits featuring BESS, you can enjoy up to 12 hours of autonomy without the need for a generator, and without any noise or fumes. Engineers at Rubikon Ukraine will help you select the optimal capacity and configuration for your home or apartment, ensuring your internet and communication services remain stable during blackouts.
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Who This Solution Is For
- Remote Workers: Reliable connectivity for Zoom calls, VPN access, and file sharing.
- Families with Children: Support for online classes, multimedia activities, and uninterrupted Wi-Fi.
- Homeowners with Cable or Fiber Internet: The router and modem continue to function during power outages.
How It Works
- During the day, solar panels provide power to the router, modem, laptop, and charge the battery energy storage system (BESS) using the solar energy they generate.
- At night or during power outages, the BESS supplies power to the router, optical network terminal ONT/modem, lighting, and laptop.
- This system is scalable, meaning you can add more solar panels or increase the capacity of the BESS later on. This allows for extended backup time or supports additional devices as needed.
Backup Power Scenarios For Home
| Consumption scenario | Solar system capacity | System configuration | Approximate price |
|---|---|---|---|
|
Wi-Fi, laptop, router, lighting Seamless work and learning from home without interruptions. |
1 kW | 2–3 panels × 445 W, 1 kW inverter | ≈ $1,800 |
|
Wi-Fi, lighting, PC, device charging. Basic backup power for up to 10 hours without electricity. |
2 kW | 4–5 panels × 445 W, 2 kW inverter | ≈ $2,400 |
|
Home office / remote work. Router, laptop, monitor, Wi-Fi, and lighting powered without a generator. |
3 kW | 7 panels × 445 W, 3 kW inverter | ≈ $3,500 |
|
Comfortable everyday living without a generator. Lighting, PC, refrigerator, TV, and boiler. |
5 kW | 11 panels × 445 W, 5 kW inverter | ≈ $4,700 |
|
Home office + BESS backup. Wi-Fi, laptop, lighting + up to 12 hours of autonomy. |
3 kW + BESS 5.1 kWh | 7 panels × 445 W, 3 kW inverter, Hithium battery 5.1 kWh | ≈ $4,200 |
|
Comfort + BESS backup up to 24 hours. Lighting, TV, boiler, refrigerator, Wi-Fi. |
5 kW + BESS 5.1 kWh | 11 panels × 445 W, 5 kW inverter, Hithium battery | ≈ $5,600 |
What Works Without Power With Solar Panels
- Wi-Fi router and optical modem (ONT)
- Laptops and desktop computers
- Chargers for smartphones and power banks
- Lighting in 2-3 rooms
- Security cameras, alarm systems, and intercom systems
- Smart TV or TV set-top boxes
- Electric boiler (for systems rated at 3-5 kW)
Advantages of Solar Panels
- Internet without Grid Power: Your router and ONT/modem will continue to work even during power outages.
- Silent and Safe: Unlike generators, solar panels produce no fumes or emissions.
- Up to 12 Hours of Autonomy: The system can operate independently for up to 12 hours, depending on battery energy storage system (BESS) capacity and load demands.
- Lower Cost per kWh: By combining daytime solar generation with off-peak night charging of the BESS, you can reduce energy costs.
- Modular Design: Start with a 1-3 kW system and easily scale up to 5+ kW as your needs grow.
How to set up Wi-Fi without electricity
- Install a solar panel and a 1-5 kW inverter.
- Add a battery (BESS) to provide power at night or during outages.
- Connect a router, modem, laptop, or lamp to the inverter.
- Everything works automatically: during the day, the system charges the battery, and during a blackout, it powers your Wi-Fi.
Comparison of Home Backup Power Solution
| Solution | How It Works | Charging / Runtime Duration | Optimal Use | Cons | Price |
|---|---|---|---|---|---|
| Gasoline or Diesel Generator | Runs on fuel and generates electricity while the engine is operating | As long as there is fuel | Home, workshop, business | Noise, fumes, emissions, fuel dependency | from ~$1,000 |
| Portable Power Station (EcoFlow, Bluetti, Jackery) | Charges from a wall outlet or solar panels; powers AC outlets and USB ports | 5–24 hours | Wi-Fi, laptop, refrigerator, boiler, lighting | Limited capacity, high cost | from ~$700 – $3,000 |
| Mini Solar Power Plant | Solar panels generate energy, the battery stores it and supplies power during blackouts | Up to 24 hours or more | Full home or office power supply for 10+ years | Requires a roof or space for solar panels | from ~$1,800 |
How We Work
- Initial consultation and energy usage review
- On-site inspection and system assessment
- Technical design and cost modelling
- Installation scheduled around academic calendars
- Monitoring, maintenance, and support
Why Choose Rubikon
- 50+ energy projects delivered
- Proven experience with 10-500 kW+ systems
- Engineering-first approach (load profile + electrical reality, not “generic kits”)
- Financing strategy support
- Technical audit and tailored system architecture
- Quote in 24 hours, quick installation
- Turnkey EPC: design → installation → support
- Transparent pricing: fixed budget, no hidden costs
FAQ
Yes, if a battery powers your router and modem/ONT. This works provided your internet provider’s network nodes are active (they often have backup power). That’s why we set up uninterruptible power solutions specifically for routers and modems, ensuring stable internet access during outages.
- Wi-Fi router
- Modem (ONT)
- Laptops or PCs
- Room lighting
- Smart TV
- Smartphone chargers
For systems with 3-5 kW capacity, a refrigerator or boiler can also function, if configured properly.
We evaluate several key factors, including:
- Your actual energy consumption (the total watts you use)
- The devices that need to operate during a power outage
- The desired backup runtime (how long you need the power to last)
- The type of installation (apartment or house)
Using this information, we provide a detailed cost estimate and recommendations for the optimal system capacity and configuration.
The duration depends on the capacity of the Battery Energy Storage System (BESS) and the actual power consumption. For instance, with a BESS that has a capacity of around 5 kWh, a router and Optical Network Terminal (ONT) can operate for more than 15 hours. This time can be extended if they are the only devices using power.
Yes, if your backup system powers the ONT or modem. However, the provider’s network node must also be operational, which is usually backed up by a UPS or generator.
A mini solution includes a low-power inverter and a 1 to 2 kWh battery. A basic home internet backup setup typically requires a 1 to 3 kW inverter with a 2 to 5 kWh BESS.
Yes, combining daytime solar generation with charging the BESS during the night tariff reduces the cost per kWh. Actual savings vary based on individual consumption profiles.
Yes, certified engineers must perform the installation. This includes ATS, SPD, proper grounding, correct cable sizing, and appropriate IP protection. We design and implement all these safety measures as standard.
Yes, as long as it is powered by the backup system and there is an internet connection (the router or ONT is functioning, or it is connected via LTE).