How To Compare Solar EPC and O&M Proposals

Commercial and industrial solar system buyers typically compare multiple bids when choosing the ideal solar EPC (engineering procurement and construction) company for an on-site project. The bids are often simply ranked against each other by a financial metric, such as highest cost savings or best net present value for solar EPC; or lowest cost for operations and maintenance (O&M). However, it’s of the utmost importance that commercial buyers ask the right questions to hone in on the underlying assumptions baked into the proposal. Even better is when buyers create a baseline of assumptions provided to bidders in advance — ensuring that the proposals submitted don’t vary due to incorrect or inconsistent assumptions.

We’ve pulled together the most common assumptions that may vary between bidders and how they can drastically change the solar project value and O&M service offering.

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