Hydro Scheme Development Services

Green Cat Renewables is a company specialising in providing the full range of technical expertise in-house to successfully deliver hydro-electric projects from feasibility to construction.

With a team of over 50 staff including civil, geotechnical and electrical engineers, as well as a dedicated planning and environmental team we have successfully helped deliver over 30 hydropower projects with a total output of over 25MW. Our clients to date have included landowners, developers and community groups.


We currently have a range of hydro projects from 50kW to 1.1MW at various stages of consent, design, construction and completion. Our hydro projects encompass a range of small hydro scheme types including:

  • High head schemes with an overall system height difference of over 200m between intake and powerhouse;
  • Low head hydro with flow rates of over 1m3/s; and
  • Schemes incorporating water storage from reservoirs.


Utilising our comprehensive in house capabilities and experience, we are able to offer the full range of expertise necessary to take a hydro scheme from inception, through feasibility, obtaining necessary consents, detailed design, tender of civil, mechanical and electrical works; and the procurement of all components, to construction and generation. In doing this we always maintain good communication and working relationships with clients, councils, contractors and other official bodies such as SEPA, SNH, WoSAS, DNO bodies, OFGEM etc, to ensure our projects progress efficiently ‒ on time and on budget.

Due diligence services are provided to lenders and developers as technical adviser to provide independent analysis of pre-construction and operational schemes. A wide range of services are available including energy yield assessments, review of all permissions, civil & turbine supply contracts, O&M contracts and grid connection. In addition site visits can be conducted to provide reporting and drawdown approval on behalf of the lender.

  • High and low head run of river and storage hydro schemes
  • 50kW to 2MW Projects
  • Resource assessment
  • Feasibility and outline design
  • All consenting works including planning and abstraction licence applications
  • Civil, geotechnical and electrical engineering design
  • Ofgem, Power Purchase and Meter Operator Assistance
  • Project management
  • Due diligence