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Procurement Guidance Menu

Large-Scale Renewables Aggregation Guidance

Evaluate Proposals

Groups will likely need external technical assistance to evaluate project proposals. Please see the instruction on evaluating physical PPA proposals here and virtual PPA proposals here.

Depending on the governance structure of the procurement group, one or more local government members need to form an evaluation committee through approved governance processes to select preferred proposals.

The Solar and Wind Off-Site PPA Economic Calculator (SWOPEC) tool can provide a useful, initial financial assessment of different projects.

Solar and Wind Off-Site PPA Economic Calculator (SWOPEC)

What is it?
An Excel model that provides a lifecycle financial analysis of off-site renewable energy physical and virtual PPAs.

What does it do?

  1. It provides a preliminary economic evaluation of off-site wind and solar PPAs early in the procurement process.
  2. It can compare different off-site PPA RFP bids later in the procurement process.

How to use it?
Download the Excel model from the Renewables Accelerator website and follow the embedded instructions. Here is a full video tutorial that walks you through the tool.