May 2025

As energy costs continue to rise and climate concerns intensify, more homeowners and businesses are turning to solar. But navigating the transition isn’t always straightforward. Small missteps—especially during the planning and purchasing phases, can lead to inefficiencies, higher costs, and underwhelming performance. Here at Fortress Power, we’ve helped thousands of customers design smarter, more resilient solar + storage systems. Here are seven common mistakes to avoid, and how our technology can help you maximize your return on investment.

1. Underestimating Your Energy Needs

Accurate system sizing begins with a clear understanding of your energy consumption. Reviewing your historical utility usage helps ensure your system can meet your needs year-round. Overestimating can result in unnecessary costs, while underestimating leads to dependence on the grid—defeating the purpose of energy independence.

2. Prioritizing Upfront Cost Over Long-Term Value

Going with the lowest bid might save you money in the short term, but it often sacrifices quality, safety, and long-term support. Fortress Power’s energy storage solutions use advanced lithium iron phosphate (LFP) chemistry—known for its safety, durability, and efficiency. That means a better-performing system and a smarter long-term investment.

3. Overlooking the Importance of Battery Storage

Solar panels alone can’t store energy or provide backup power. Without a battery, your system may leave you exposed during outages or unable to use your solar power after sunset. Fortress Power’s eFlex, eVault Max, and eForce ESS deliver reliable energy storage for backup power, grid independence, and increased self-consumption.

4. Missing Out on Incentives and Program Opportunities 

From federal tax credits and utility rebates to Virtual Power Plant (VPP) programs, there are numerous ways to reduce costs and boost returns. Fortress Power and our certified partners help you navigate the incentive landscape, ensuring compliance and financial optimization. In states like North Carolina, eligible VPP participants can receive upfront incentives in addition to monthly bill credits, turning your battery into a revenue-generating asset.

5. Neglecting Warranty Coverage and Technical Support

Not all warranties offer the same protection. Fortress Power stands behind our products with industry-leading warranties, including an extended 30-year warranty backed by SolarInsure—giving you unmatched long-term coverage. Coupled with our dedicated U.S.-based technical support team, you can count on reliable performance and peace of mind for decades to come.

6. Using Non-Certified or Inexperienced Installers

Even the best technology can underperform if it’s not installed correctly. A certified, experienced installer ensures your system is code-compliant, safely integrated, and optimized from the start. Fortress Power works with a trusted network of certified installers who understand our products inside and out.

7. Assuming Systems Are Maintenance-Free

While solar and storage systems are relatively low-maintenance, routine inspections, firmware updates, and system monitoring are key to optimal performance. Fortress Power provides support tools and resources to keep your system operating reliably for years to come.

Investing in solar is a long-term commitment, and steering clear of these mistakes can set you up for lasting success. With Fortress Power, you’re not just getting advanced energy storage—you’re gaining a trusted partner to help you plan, adapt, and thrive in an evolving energy landscape. Curious how our solutions can work for you? Get in touch today and discover what’s possible with Fortress Power.