Note 14 - WARRANTY LIABILITY

For the three ended March 31, 2026 and 2025 there was no change in our warranty liability. We estimate our warranty liability based on past experiences and estimated replacement cost of material and labor to replace the critical turbine in the units that are still under warranty. The outstanding balance as of March 31, 2026, and as of December 31, 2025 was $100,000 and $100,000.