Invitation to Tenders is sought from suitably qualified Contractors to undertake the complete Project Scope comprising of supply, delivery, installation and commissioning of modular off-site constructed containerised biomass cabins and the subsequent supply and delivery of fuel to each school for a period of 15 years. The successful contractor will be required to enter into 2 separate contracts covering the works element (Contract A) and the supply of fuel element (Contract B) as follows: a. Contract A: Public Works Contract (PWC) relating to the supply, delivery, installation and commissioning of modular off site constructed containerised biomass cabins including plantroom and equipment to each school within this bundle. b. Contract B: Local Energy Supply Contract (LESC) relating to the supply and delivery of fuel (wood pellets) and sale of heat, including full operation, maintenance, repair and replacement of biomass cabin equipment to each school within this Bundle for a period of 15 years. The Project Scope is for six (6) school site locations (4 schools in County Mayo: 2 schools in County Roscommon) The biomass heating installation will be completed by a separately appointed Biomass Contractor.