What due diligence should FTM energy storage buyers conduct before investing?

FTM energy storage represents a significant capital investment, often requiring $100+ million for utility-scale projects. Rigorous due diligence before committing funds is essential to protect returns.

Financial modeling validation is the foundation of due diligence. Request detailed spreadsheets showing revenue assumptions, capital costs, operating expenses, and financing terms. Verify that revenue assumptions are conservative and based on actual historical market data, not projections. Challenge inflated capacity factors or unrealistic market participation rates. Independent financial advisors often re-model projects from scratch to ensure assumptions are reasonable.

Revenue forecasting assessment requires deep examination. Ask: Which grid services are included in the revenue forecast? Are the prices based on historical averages or peak years? Does the model account for declining revenue as more storage enters the market? What happens if market prices fall 20%? Conservative FTM buyers discount forecast revenue by 15–25% to account for uncertainty and market evolution.

Interconnection review should include obtaining and analyzing interconnection studies, queue position, estimated timelines, and network upgrade costs. Verify that the developer has actually progressed through interconnection steps and received study results—not just entered the queue. Long queue positions materially extend project timelines and reduce returns.

Developer track record assessment matters significantly. Have previous projects delivered on time and on budget? Have they achieved projected revenue and operational performance? References from prior project offtakers, lenders, and operators provide critical insights. New or unproven developers carry significantly higher risk.

Technology selection review examines battery chemistry, inverter quality, thermal management, and control systems. Not all lithium-ion batteries perform equally. Verify that the selected battery and balance-of-system components have appropriate warranties (typically 10+ years for FTM systems) and documented performance in similar applications.

Operational capability assessment evaluates whether the project has adequate operations and maintenance contracts. FTM systems require active optimization to capture multiple revenue streams simultaneously. Poor operations management can reduce returns by 10–20%. Review O&M budgets, provider qualifications, and monitoring systems.

Regulatory and policy risk review considers: Could wholesale market rules change? Are key incentive programs stable? Could renewable energy growth reduce storage profitability? While unpredictable, understanding regulatory uncertainty helps assess downside scenarios.

Insurance and liability assessment verifies that projects carry appropriate property, liability, and equipment failure insurance. Understand who bears risk if the battery degrades faster than projected or fails catastrophically.

Professional FTM buyers often hire independent technical advisors to verify developer claims. This costs $50,000–$200,000 upfront but frequently saves millions by identifying flawed projects or renegotiating terms. It's particularly important when evaluating unfamiliar developers or unconventional project structures.