JHW are independent advisers on biomass systems both large and small, often in conjunction with district heating systems. Our Energy and Planning team are delivering projects for clients across a range of capacities and fuel types including logs, chip and pellet systems.

Commercial systems are financially supported by the Renewable Heat Incentive (RHI) - index linked and guaranteed for a 20 year period. Additional income streams are derived from onsite usage and/or sale to third parties.

Domestic schemes will benefit from similar over a 7 year period.

From initial feasibility and technology selection, JHW have secured planning where required and RHI accreditation for a range of schemes along with funding support and project delivery throughout the United Kingdom.

When we can help

  • Commercial or Domestic Installations
  • High onsite energy usage?
  • Reliant on oil or LPG fuel for heat generation
  • Concerned about rising energy prices?
  • Looking to secure your energy costs for the next 20 years?
  • Existing or potential fuel sources
  • District Heating opportunity

Our services include:


  • Address the technologies that best suit your resources and needs
  • Report on the constraints, costs and returns and timeframe for investments, fuel type
  • Advice on the best specification for your project taking account of technical and economic factors including choice of biomass boilers and wood pellet boilers
  • Funding - we deal with Banks and private investors, matching finance type to individual client needs

Planning Applications

  • When required, preparation, submission of planning application and supporting technical documentation
  • Discharge of planning conditions
  • Appeal

Project Delivery

  • Contract negotiation and funding
  • Accreditation for Renewable Heat Incentive (RHI)
  • Project delivery and commissioning - We stay involved with the majority of our projects through commissioning to ensure delivery meets expectations

Why JHWalter

  • Experience in biomass from 2004
  • Experience of working on a wide variety of Renewable Energy schemes
  • Excellent success rate and realistic, honest and Independent advice
  • Work hard to get you the best result for a fair fee
  • Excellent established reputation - originally established in 1790


Henry Haworth

BSc (Hons) MSc Energy Manager 01522 504 327
07919 694 234
Henry’s profile
Henry Haworth

David Wright

BSc (Hons) MIAgrM Consultant 01522 504 321
David’s profile
David Wright

James Lambert

BSc (Hons) MSc MRTPI Chartered Town Planner 01522 504 329
James’s profile
James Lambert

Steve Catney

BA (Hons) Partner,
Town Planner
01522 504 330
07919 694 229
Steve’s profile
Steve Catney