Support for RETScreen, Homer...

Software Support

At the Clean Energy Institute, we have specialists who provide assistance with various due diligence tools such as

  • RETScreen
  • Homer
  • System Advisor Model
  • Various other tools related to technical due diligence and feasibility analysis for clean energy projects


We provide assistance beyond these tools built-in user manual, for instance:

  • to set up the analysis of your potential energy efficiency or renewable energy project using the tools' best practices
  • to receive guidance and validation of the tools inputs given the context of the project
  • to tweak the tool to get desired behavior
  • to manage multiple scenarios
  • to troubleshoot


The RETScreen® Clean Energy Project Analysis Software is a decision support tool developed with the contribution of experts from government, industry, and academia over the past 10 years. The software can be used for quantitative analyses such as energy production and savings, costs, emission reductions, financial viability and risk for various types of Renewable-energy and Energy-efficient Technologies (RETs). It simplifies preliminary evaluations and creates standardized procedures that enable funders, planners, developers, regulators, etc to make go-no go decisions for potential clean energy projects.

HOMER Energy

The HOMER Hybrid Optimization Modeling Software is used for designing and analyzing hybrid power systems, which contain a mix of conventional generators, cogeneration, wind turbines, solar photovoltaics, hydropower, batteries, fuel cells, hydropower, biomass and other inputs. The tool can analyze either grid tied or standalone systems and can also perform greenhouse gas calculations for the measures being considered. HOMER allows the user to input an hourly power consumption profile and match renewable energy generation to the required load. This is allows a user to analyze micro-grid potential, peak renewables penetration, ratio of renewable sources to total energy, and grid stability, particularly for medium to large scale projects. Additionally, HOMER contains a powerful optimizing function that is useful in determining the cost of various energy project scenarios. This functionality allows for minimization of cost and optimization of scenarios based on various factors (e.g. various scenarios for cost of energy and equipment, sizes, equipment performance..).

System Advisor Model

The System Advisor Model (SAM) is a performance and financial model designed to facilitate decision making for people involved in the renewable energy industry, ranging from project managers and engineers to incentive program designers, technology developers, and researchers. SAM makes performance predictions for grid-connected solar PV, concentrating solar power, wind, biomass, geothermal power systems, and also covers solar water heating. Its cash flow models are appropriate for distributed energy projects that buy and sell electricity at retail rates, and for power generation projects that sell power at a price negotiated through a power purchase agreement. The model calculates the cost of generating electricity (LCOE) based on information you provide about a project's location, installation and operating costs, type of financing, applicable tax credits and incentives, and system specifications.

Our rates for technical support on RETScreen or other tools such as Homer are CAN $90 for 30 minutes or CAN $150 per hour.

To request assistance, use the Registration Form and under What are you registering for? select Other (Consulting), then RET30, RET60, or OTHER as the related course name if you need 30 minutes or one hour support. You will need to enter the valid price corresponding to your choice. The Registration Form can be accessed directly from here