The Toolbox consists of four separate Excel models:
- IPP Model
- Green Mini Grid (GMG) model
- Prosumer model (RE systems for own consumption and injection of excess generation into the grid)
- Supply Curve model
For each of the mini grids, IPP and prosumer models there is an option to run three different cases. These are:
- A reference project calculation: it allows to consider either (1) a typical project in their country (for example an “average” solar PV project) to support setting feed-in tariffs, or (2) a specific project, for example, if there is a tender to develop in a specific location, or a speculative application from a potential developer that needs to be evaluated.
- An avoided cost calculation: it allows to compare two scenarios, one usually looking at a baseline scenario where the project is not implemented and the other looking at the scenario where the project is implemented. The cost associated with the baseline scenario where the renewable project is not implemented will provide the “avoided cost” for the renewable project. In other words, it gives a figure for what would need to be spent to deliver the energy from other sources. Using this module will allow the user to consider either (1) setting feed-in tariffs at a level that ensures that consumers pay no more for renewables than the conventional alternative, or (2) to support policy makers and regulators in understanding the cost implications of a renewable project relative to the alternative.
- A supply impact calculation: it allows to be able to compute what would happen in the system’s economic balance if a certain level of RE penetration is targeted and achieved.
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