# Biomass Energy Techniques > Biomass energy techniques builds and sells PRD's (Pyrolysis Rotary Drum) designed to convert waste to energy. The PRD units are advanced waste to energy sysytems that creates carbon negative biochar and enables customers to qualify for carbon credits. ## Pages - [Home](https://biomassenergytechniques.com/prd-info) - [MSW & LANDFIll DIVERSION](https://biomassenergytechniques.com/prd-info#4f729db2-a0f0-467d-8b1f-54130b67548c) - [PRD SOLution](https://biomassenergytechniques.com/prd-info#8a841d1c-0c1f-499b-8c2d-c4d0484aab39) - [CONTACT](https://biomassenergytechniques.com/#435fc842-95bc-411d-a6a6-328b2d2ad930) ## Contact ### Hours - Monday: 09:00 - 17:00 - Tuesday: 09:00 - 17:00 - Wednesday: 09:00 - 17:00 - Thursday: 09:00 - 17:00 - Friday: 09:00 - 17:00 - Saturday: Closed - Sunday: Closed