Avoiding Common Mistakes in Renewable Energy Feasibility Studies

A strong feasibility study is the foundation of a successful renewable energy project. It’s what sets the stage for an investment in solar, battery storage, or microgrids, making sure the system is actually going to work long-term and provide real value. But not all feasibility studies hit the mark.

Over the years, we’ve seen some avoidable mistakes that lead to inaccurate numbers, delays, or unexpected costs. The good news? Knowing about these mistakes ahead of time helps community leaders make better decisions and build stronger, more reliable energy systems.

Underestimating Future Energy Needs

A lot of feasibility studies focus only on current energy use, but what about five, ten, or twenty years from now? For example, tribal communities are growing, businesses are expanding, and electrification is on the rise. If a study doesn’t factor in economic development or future demand, the system might end up too small, leading to costly upgrades down the line.

How We Do It Differently: We take a big-picture approach, factoring in economic plans, new housing, and policy shifts to make sure the system meets long-term needs and doesn’t become outdated too soon.

Not Accounting for Seasonal Changes

Solar for example doesn't produce the same amount of energy all year. Battery storage needs also shift depending on how much sun you’re getting, and winter months can drastically impact performance. If a feasibility study assumes steady production year-round without adjusting for regional climate patterns, you’re in for a surprise when winter rolls around.

How We Do It Differently: We use real-world data, looking at historical weather patterns, shading, and seasonal energy use to create a system that actually works in all conditions, not just on paper.

Skipping Over Grid Connection Issues

Getting a renewable energy system to work isn’t just about the equipment, it also has to connect smoothly to the grid. Some studies speed over interconnection requirements, which can lead to unexpected delays, additional costs, or even the project getting rejected by the utility company.

How We Do It Differently: We work with utilities from the start, so there aren’t surprises later. We anticipate voltage requirements, permitting hurdles, and grid constraints before they become a problem.

Assuming Funding Will Fall Into Place

A common mistake? Thinking that funding is just “Step 2” after the study is done. Different grants and incentives come with their own technical and reporting requirements, and if a feasibility study isn’t aligned with those, a project might miss out on major funding opportunities.

Forgetting About Long-Term Maintenance

A renewable energy system isn’t “set it and forget it.” Batteries need replacement, solar panels need cleaning (some more than others), and someone has to know how to run the system. Too many feasibility studies focus only on installation costs and ignore long-term maintenance, which can lead to unexpected expenses and system failures later.

How We Do It Differently: We include a detailed O&M plan, workforce training recommendations, and long-term system monitoring so community members aren’t left figuring it out on their own.

Final Thoughts

A feasibility study isn’t just about checking boxes, it’s about setting up a project for long-term success. At Sun Bear Industries, we go beyond basic assessments by integrating real-world conditions, funding strategy, and long-term planning into every study we do.