Energy Independence Through Battery Storage
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Power Your FutureStore Your Solar. Use It When You Need It.
At Ethos Green Power, we believe that true energy independence means not just generating your power, but having control over when and how you use it. Battery storage systems paired with solar installations are transforming how Southwest Wisconsin homeowners think about energy.
Whether you're looking to protect against outages, maximize your solar investment, or take the first step toward going off-grid, our battery solutions put the power in your hands—literally.
Backup Power Security
Keep your lights on and essential appliances running during grid outages. No more worrying about storms, maintenance issues, or other disruptions affecting your family's comfort and safety.
Battery backup provides peace of mind that's invaluable during Wisconsin's unpredictable weather events.
Maximize Solar Investment
Store excess solar energy generated during the day to use during peak evening hours when utility rates are typically higher.

- Reduce or eliminate peak-hour electricity costs
- Achieve greater energy independence
- Protect against changing utility policies
Reduce Your Carbon Footprint
By utilizing more of your clean solar energy and relying less on grid power (which often includes fossil fuels), you're making an even bigger environmental impact. A typical home battery system can help you use up to 30% more of your solar power that might otherwise be sent back to the grid.
Battery Storage Options for Every Need
At Ethos Green Power, we offer a variety of battery solutions to meet different household needs and budgets. Our team will help you choose the right system based on your energy usage, backup power requirements, and future goals.
Lithium-Ion Battery Systems
The gold standard in home energy storage, offering excellent efficiency, long life, and compact design. These systems are perfect for daily cycling and maximizing your solar investment through energy arbitrage and self-consumption.
Popular options include Enphase IQ Battery, FranklinWH and SolarEdge Energy Bank systems.
Lead-Acid Battery Solutions
A proven technology with a lower upfront cost. While requiring more maintenance and space than lithium-ion, these systems offer reliable performance for basic backup needs or off-grid applications where space isn't limited.
Ideal for projects with tight budgets that still need dependable backup power.
Scalable & Modular Systems
Start small and expand your energy storage capacity over time. Modular battery systems allow you to begin with essential backup and grow as your needs and budget allow.
Important: All battery systems we install work seamlessly with both new and existing solar installations, giving you flexibility for the future.
Integrating Batteries with Solar: The Perfect Partnership
Solar panels and battery storage are natural companions in the journey toward energy independence. Here's how they work together to maximize your benefits:
How It Works
During daylight hours, your solar panels generate electricity that powers your home and charges your battery system. When the sun sets or during cloudy periods, the stored energy in your batteries takes over, keeping your home running on clean, self-generated power.
This seamless transition between energy sources happens automatically, with smart systems prioritizing solar power use, battery charging, and grid interaction based on your preferences.
Choosing the Right Battery System
Energy Needs Assessment
The first step is understanding what you want to power during outages or peak hours. Do you need backup for your entire home, or just critical loads like refrigeration, heating, well pumps, and communications?
Our team conducts a thorough energy audit to determine your typical usage patterns and helps you prioritize which systems and appliances are most important to keep running.
Installation Location
Battery systems have specific installation requirements regarding temperature, ventilation, and accessibility. We'll evaluate your home to find the optimal location that meets safety standards while remaining convenient for maintenance.
Most modern lithium-ion systems can be installed indoors or in garages, while lead-acid batteries typically require well-ventilated dedicated spaces.
Budget Considerations
Battery storage is an investment in energy security and independence. We offer solutions at various price points and can help you understand available incentives and tax credits that may reduce your costs.
Many of our customers find that the peace of mind and long-term savings from battery storage make it a worthwhile investment, especially in areas prone to outages.
Battery Options Compared
| Feature | Lithium-Ion | Lead-Acid |
|---|---|---|
| Upfront Cost | Higher | Lower |
| Lifespan (cycles) | 5,000-10,000 | 500-1,500 |
| Maintenance | Minimal | Regular |
| Space Required | Compact | Larger |
| Efficiency | 90-95% | 80-85% |
| Best Use Case | Daily cycling, limited space | Occasional backup, budget constraint |
Frequently Asked Questions
How long will a battery system power my home during an outage?
The duration depends on several factors, including your battery capacity, what appliances you're running, and your energy consumption patterns. A standard lithium-ion battery system (like an Enphase 10c) can typically power essential loads (refrigerator, lights, internet, select outlets) for 12-24 hours. For whole-home backup or longer durations, multiple battery units might be recommended.
Can I add batteries to my existing solar system?
Yes! Most existing solar systems can be retrofitted with battery storage. The integration process varies based on your current inverter and system configuration, but our team has extensive experience adding battery backup to all types of existing solar installations throughout Southwest Wisconsin.
How long do home battery systems last?
Modern lithium-ion battery systems typically last 10-15 years with proper use. Most manufacturers offer warranties of 10 years or a certain number of cycles (charging/discharging events). Lead-acid batteries generally have shorter lifespans of 5-7 years when properly maintained. The good news is that battery technology continues to improve, with newer systems offering longer lifespans and better performance.
Are there incentives available for battery storage?
Yes! Battery storage systems installed with solar qualify for the federal Investment Tax Credit (ITC), currently at 30%. Additionally, some utilities in Wisconsin offer rebate programs or special time-of-use rates that make battery storage more economical. Our team will help you navigate all available incentives to maximize your savings.
Do batteries require maintenance?
Lithium-ion battery systems require minimal maintenance—primarily monitoring through the system's app and occasional software updates which often happen automatically. Lead-acid batteries require more attention, including regular checks of fluid levels, terminal cleaning, and ensuring proper ventilation. At Ethos Green Power, we include monitoring and maintenance recommendations with every battery installation.
Our Battery Installation Process
Needs Assessment & Site Evaluation
We'll analyze your energy usage, and backup power needs, and discuss your goals to determine the right battery solution for your home.
System Design & Proposal
Our team will create a custom battery storage solution designed specifically for your home, existing or new solar system, and backup requirements.
Permitting & Utility Coordination
We handle all the paperwork, permits, and utility notifications required for your battery installation.
Professional Installation
Our certified technicians will install your battery system with minimal disruption to your home and daily routine.
System Configuration & Testing
We'll configure your battery system, integrate it with your solar (if applicable), and thoroughly test all components to ensure optimal performance.
User Training & Ongoing Support
We'll show you how to monitor and manage your new battery system and provide ongoing support for the life of your system.
Ready to Take Control of Your Energy?
Whether you're looking to protect against outages, maximize your solar investment, or take the first step toward going off-grid, our battery solutions put the power in your hands. Contact Ethos Green Power today to learn how battery storage can transform your energy experience.
Call us at (608) 637-3797 or visit ethos.green to get started on your battery journey.
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