PVWatts makes a solar proposal stronger when the source and caveats are visible.
PVWatts can give consultants a credible production basis for early proposal work, but the proposal still needs to show what was modeled, what remains assumed, and what must be verified before client reliance.
Best for
Solar consultants who want production estimates in commercial proposals, feasibility reports, and PDF handoffs without hiding the assumptions.
What to include before the client sees the pack.
These sections are written to be useful in the workflow itself: intake prompts, document sections, review checks, and client handoff content.
Why PVWatts helps
A named model is easier for clients to trust than an unexplained production factor.
Inputs to capture
PVWatts needs enough site and system context to produce a useful estimate.
How Solardeck uses it
Solardeck keeps the model useful without making it look more certain than it is.
Questions about nlr pvwatts for solar proposals.
Clear answers help the consultant and client agree on what is known, what is assumed, what is excluded, and what should happen next.
What is PVWatts?
PVWatts is a solar production model from the national lab developer network that estimates the monthly and annual energy output of grid-connected PV systems from basic site and system inputs.
Does PVWatts make a proposal more credible?
Yes, when used carefully. A proposal is stronger when the production estimate names the model source, shows the inputs, and explains that roof, shade, tariff, equipment, and construction details still need verification.
What does Solardeck need to run PVWatts?
Solardeck needs an NLR API key, system size, and site coordinates. If the user provides a site address, Solardeck can try to geocode it before running the production estimate.
Should PVWatts output be shown as guaranteed production?
No. PVWatts output should be shown as an advisory production estimate with assumptions, warnings, and a clear note that final design, shading, weather, equipment, and construction conditions can change results.
Can Solardeck fall back if PVWatts cannot run?
Yes. Solardeck can use manual production mode and flag the missing inputs so the consultant can complete them before the proposal becomes client-facing.
Related Solardeck workflows
Continue reading
Solar production estimate guide
Production estimates are persuasive only when the client can see the source, assumptions, missing data, confidence level, and limits of the analysis.
Solar feasibility report guide
Feasibility work is valuable when clients can see the evidence, confidence level, caveats, and next action without confusing advisory assumptions for final guarantees.
Turn this guidance into a reviewed solar proposal workflow.
Solardeck turns intake answers into proposal sections, SOW phases, assumptions, missing-data requests, tracker items, and PDF-ready handoffs.
First proposal path