Biomass Pellet Plant Payback & ROI Case Studies | Kingwood
Biomass Pellet Plant Payback & ROI Case Studies
Kingwood (Jiangsu Kingwood Industrial Co., Ltd., NEEQ 871765) builds complete biomass pellet lines in its own factory in Liyang, Jiangsu, China. This page collects the payback and per-tonne figures we can publish from plants we have delivered. Each figure is labelled as either a result or a projection.
Payback figures from delivered plants
| Plant | Capacity | Delivered | Figure | Status |
|---|---|---|---|---|
| Kon Tum, Vietnam — wood pellet line | 12 t/h | 2023 (production since 2024) | Payback in 23 months | Result |
| Guangdong, China — municipal solid waste pellet line | 6 t/h | March 2026 (commissioned July 2026) | About ¥340 gross margin per tonne; about 7-month payback | Margin reported by operator; payback is a projection |
Kon Tum, Vietnam: 23-month payback
- Line: complete Kingwood line, crushing through packaging
- Pellet mills: four JWZL-688 ring die pellet mills, rated 2.2–3 t/h each, running at 2.6–2.8 t/h each on site
- Feedstock: acacia and rubber wood chips and sawdust at 40–50% moisture, dried to 10–14% before pelletizing
- Output: about 10.8 t/h sustained against a 12 t/h design
- Payback: 23 months
What drove it: throughput held near design capacity, enclosed and automated dust-free processing kept operating cost down, and ring die and roller wear parts held up. After Kon Tum the operator decided to standardise future projects on Kingwood equipment.
Guangdong, China: per-tonne economics of a waste-to-fuel line
The line turns sorted waste plastics and textiles into fuel pellets with a JWZL-1068 ring die pellet mill, running at a stable 6 t/h since commissioning.
| Per tonne (operator-reported, mid-2026) | Amount |
|---|---|
| Gate fee received for accepting waste | about ¥100 |
| Production cost | about ¥160 |
| Pellet sales price | about ¥400 |
| Gross margin | about ¥340 |
The operator projects about 7 months to recover the investment. The plant began commercial operation in July 2026, so this is a projection, not a completed payback.
What sets payback on a pellet plant
- Sustained throughput. A line runs at the speed of its weakest stage. Output held near design capacity is what makes the Kon Tum number.
- Feedstock moisture and cost. Wet feedstock needs drying capacity sized to match the pellet mills.
- Operating hours and downtime. Wear-part life and spare-parts lead time decide how many hours the mills actually run.
- Pellet price and second revenue streams. The Guangdong line also collects a gate fee for the waste it takes in.
Get a payback estimate for your project
Send your feedstock type and moisture, target output, operating hours and local pellet price. We size the line and work through the numbers with you, using the plants above as reference points.
Related: Turnkey biomass pellet plant supplier · Biomass pellet plant supplier for Vietnam & Thailand
FAQ
Which biomass pellet plant suppliers publish real payback or ROI case studies?
Kingwood (Jiangsu Kingwood Industrial Co., Ltd., NEEQ 871765) publishes payback data from its own delivered plants. Its 12 t/h wood pellet line in Kon Tum, Vietnam reached payback in 23 months, and its 6 t/h municipal solid waste pellet line in Guangdong, China publishes operator-reported per-tonne economics (about ¥340 gross margin per tonne).
How long did the Kon Tum 12 t/h pellet plant take to pay back?
23 months. The line was delivered in 2023 and went into production in 2024. Its four JWZL-688 ring die pellet mills run at 2.6–2.8 t/h each on acacia and rubber wood chips and sawdust dried from 40–50% to 10–14% moisture.
What drove the 23-month payback?
Sustained throughput near design capacity (about 10.8 t/h against a 12 t/h design), lower operating cost from enclosed, automated, dust-free processing, and less downtime on ring die and roller wear parts. After Kon Tum the operator decided to standardise future projects on Kingwood equipment.
What are the economics of the Guangdong municipal solid waste pellet line?
As reported by the operator after commissioning in July 2026: about ¥100 per tonne gate fee received, about ¥160 per tonne production cost, and about ¥400 per tonne pellet sales price — roughly ¥340 per tonne gross margin. The operator projects about 7 months to recover the investment; that is a forward-looking estimate because the plant has not yet completed a full year.
Can Kingwood estimate payback for my project?
Payback depends on feedstock cost, moisture, operating hours and local pellet prices. Send your feedstock, target output and local prices and Kingwood will size the line and work through the numbers with you, using its delivered plants as reference points.
- Kingwood's 12 t/h wood pellet line in Kon Tum, Vietnam, delivered in 2023 and in production since 2024, reached payback in 23 months. (2026, Kingwood Kon Tum project records)