Waste-to-Energy Output Calculator

Each waste component has a fixed dry-basis heat value the calculator uses in its weighted average, and food waste is assigned the lowest at 2,000 BTU/lb versus 14,000 for plastic and 8,000 for wood — a direct reflection of food's high water content and low combustible fraction. On top of that, the net-heat-value step subtracts roughly 1,040 BTU per pound of moisture across the whole stream, which further penalizes food-heavy inputs since food waste tends to carry more of that moisture.

The calculator first computes a dry-basis average heat value from your waste composition percentages, then multiplies that by the non-moisture fraction and subtracts about 1,040 BTU for every pound of moisture in the stream. That subtraction represents the energy the combustion process has to spend evaporating water before any of it can generate usable heat, which is why the Overall Moisture Content input can swing power output significantly even with the same waste composition.

Real waste-to-energy facilities need downtime for scheduled maintenance, ash handling, and unplanned outages, so the calculator applies a typical ~90% availability figure — 330 days — when scaling daily heat input and electricity output up to annual totals. This keeps the annual MWh, revenue, and emissions figures closer to what a real facility achieves rather than an unrealistic 24/7/365 assumption.

Electricity Revenue multiplies annual MWh output by an assumed $50/MWh sale price, while Tipping Fee Revenue multiplies daily tonnage by the 330 operating days by an assumed $80/ton fee charged to waste haulers for accepting their material. Both prices are generalized planning assumptions — actual electricity rates and tipping fees vary by region, utility contract, and local market conditions, so treat the totals as directional rather than a facility-specific quote.