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Renewables

Solar Battery Backup Systems

Uninterrupted Power for Residential Homes & Commercial Businesses

BESS Solutions

At Finulent Solutions, we design high-performance solar battery storage solutions that ensure your lights stay on in case of a blackout, optimize solar energy harvesting, and minimize your dependence on the grid. Whether you require whole-home backup power or simply wish to safeguard essential appliances, our AC-coupled and DC-coupled battery designs offer flexible, efficient energy storage to meet your requirements.

Residential Solar Battery Backup Solutions

BESS Solutions

At Finulent Solutions, we believe that each home is different so are your energy requirements. If you are retrofitting an existing solar panel installation or investing in a new installation, our residential solar battery backup designs provide the flexibility, reliability, and efficiency you require to retain command of your home's power supply.

AC-Coupled Residential Battery Systems

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Ideal For:
Homes with existing solar installations who want to add backup power

Supported Battery Models:
  • Tesla Powerwall – Slim, compact, and optimized for hassle-free home backup
  • FranklinWH – Self-contained powerhouse with built-in energy management
  • Enphase IQ Battery– Standalone devices that are compatible with Enphase solar microinverters

Typical Storage Capacity:

5 to 20 kWh, with the ability to add capacity for high-usage homes or electric vehicle (EV) owners

DC-Coupled Residential Battery Systems

Validation Illustration

Ideal For:
New solar + storage installations where energy efficiency is the priority.

Supported Battery Models
  • LG Chem RESU – High-density, compact storage renowned globally
  • Delta BX Series – Long-lasting, high-efficiency systems built for long-term performance
  • SolarEdge Energy Bank – Seamlessly integrates with SolarEdge's PV systems for peak synergy

Typical Storage Capacity
5 to 15 kWh, enough to power essentials such as refrigerators, lights, fans, home routers, and security systems in the event of power outages.

Commercial Solar Battery Backup Design

Solar Battery Backup

At Finulent Solutions, we provide cutting-edge commercial solar battery backup design services that enable businesses to become energy-independent, operationally continuous, and sustainably cost-saving. Whether you have a retail building, data center, hospital, school, factory, or logistics base, our customized solutions make you powered up, even when the grid is not.

AC-Coupled Commercial Battery Systems

In such configurations, the battery inverter is independent and scalable in modular blocks.

Key Benefits:
  • Perfect for retrofitting existing solar systems.
  • Simple to integrate with string or micro-inverters.
  • Scalable and modular with choices like Tesla Powerpack or Enphase.
  • Flexible deployment to multi-building campuses.

Battery Brands Supported
  • Tesla Powerpack
  • Sungrow ST Series
  • FranklinWH
  • Enphase IQ

Typical Capacity
20 kWh to 200 kWh, expandable as per business need.
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DC-Coupled Commercial Systems

DC-coupled systems combine solar panels and batteries on a common DC bus, with a hybrid inverter.

Validation Illustration

Key Benefits:
  • Increased energy efficiency due to fewer steps of conversion.
  • Reduced installation complexity and hardware expense.
  • Ideal for new solar + storage installations or big installations.
  • Compatible with centralized EMS for improved load balancing.

Battery Models Supported
  • SolarEdge Energy Bank
  • SMA Sunny Tripower Storage
  • Huawei LUNA / SUN2000
  • TIGO EI BATTERY TSB-10-US
  • Fortress eForce
  • Sol-Ark L3
  • Utility Scale and Storage

Typical Storage Capacity

20 kWh to 100 kWh, configurable for multi-hour backup and peak shaving.

Backup Options

Whole Load Backup System

Powers all circuits in homes or facilities

Best for hospitals, factories, data centers, or high-usage homes

Zero downtime with full energy continuity

Partial Load Backup System

Cost-effective coverage for essentials only

Best for lights, routers, refrigeration, medical equipment

Faster, simpler installation and upgradeable over time

Smart Load Panels

Automate and prioritize essential loads

Remote monitoring via app/web

Extend battery life & optimize energy usage

The Finulent Advantage

Master Engineering

Master Engineering

Custom AC/DC backup designs based on actual load data and future energy requirements

Seamless Integration

Seamless Integration

Effortless integration of batteries, inverters, and Smart Load Panels for both new and existing systems

Scalable & Future-Ready

Scalable & Future-Ready

Modular solutions that grow with EV charging needs, increased loads, or full facility backup

Utility-Grade Reliability

Utility-Grade Reliability

Guaranteed uptime with automated load prioritization, remote monitoring, and advanced power management

Smarter Energy Use

Smarter Energy Use

Reduce costs and boost ROI with TOU scheduling, real-time insights, and optimized battery performance

Secure uninterrupted power with expertly designed solar battery backup solutions

Frequently Asked Questions
How does Finulent Solutions' solar battery backup system operate for businesses?
At Finulent Solutions, we design commercial battery systems to be your effortless power safety net. When the grid goes down, our smart systems switch seamlessly to backup solar energy within milliseconds, keeping your business going without skips. We build each installation to value your most important equipment and optimize energy use through smart load management. For businesses concerned about productivity losses during outages, our systems provide peace of mind with 24/7 power protection and can even reduce your energy costs through peak demand shaving.
Is it possible to include battery storage in our current solar panel system?
Yes. Finulent retrofits battery storage to existing solar systems. Employing state-of-the-art AC-coupled technology, we can retrofit storage without altering your existing solar components, maintaining all warranties and adding backup power capability. The majority of commercial retrofits are done in 1-2 business days with no significant disruption to your business. We start with a thorough Battery-Ready Assessment to integrate with your specific solar system.
What are the various solar batteries Finulent has experience with?
We have successfully worked with top AC-coupled and DC-coupled batteries to match various backup requirements and project sizes.

For Residential Solar Battery Systems, we have experience with Tesla Powerwall, Enphase IQ Battery SunPower, SunVault, LG Chem, SolarEdge, Sol-Ark, Panasonic, and FranklinWH

For commercial and utility-Scale Projects, we have dealt with Tesla Powerpack and Megapack, Sungrow ST Series, SMA Sunny Tripower & Hybrid Systems.
Is a commercial solar battery backup system a wise business investment for me?
At Finulent Solutions, we repeatedly witness commercial customers' strong ROI on solar battery storage, it's one of the most forward-looking energy investments a company can make now. In addition to delivering essential backup power, our battery systems enable customers to save 30-60% on peak demand charges, become eligible for significant tax credits (including the 26% federal ITC), and even earn new revenue from grid services.