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Solar sales & sizing tools

Prepare equipment requirements, compare project assumptions and organize the information suppliers need for a useful quote.

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Tools & Calculators

ROI, BoM, freight and sizing calculators for the trade.

Designed for your business

Sales teams · Developers · Asset owners

Close more deals with credible numbers

Standardize sales math across the team

Pre-qualify projects in minutes

Planning resources for your next project

BoM Builder

Build a bill of materials in Source Center, including equipment, quantities and delivery requirements. Confirm final specifications and availability with suppliers.

Watt-class Comparator

Compare module wattage alongside dimensions, compatibility and total delivered cost. Use current supplier specifications when evaluating alternatives.

Freight Estimator

Prepare shipment dimensions, weight, pickup location and delivery requirements for a freight quote. Final pricing depends on the carrier and shipment.

Inverter Sizing

Gather module specifications, string configuration and site conditions for an inverter-sizing review. Have the final design checked by a qualified professional.

ROI Calculator

Outline equipment costs, energy assumptions and operating expenses for a project comparison. Validate financial assumptions before making an investment decision.

Sales & Proposal Templates

Organize the product specifications, pricing, delivery terms and exclusions your customer needs to review a proposal.

Turn preparation into a clearer request

Check the numbers before you quote

Use current supplier quotes and documented project assumptions. Check availability, freight and any exclusions before sharing a total.

Prepare the next purchasing step

Use your prepared requirements to request supplier quotes, compare responses and confirm the details before placing an order.

How it works

  1. 01

    Pick the template

    Residential payback, C&I LCOE or utility IRR. Each tuned to its asset class.

  2. 02

    Plug the assumptions

    System size, utility rate, financing, ITC, domestic content and degradation.

  3. 03

    Sensitivity sliders

    Flex MPPT count, parallel/series strings, amp-hours and shore-power offset live.

  4. 04

    Export the deck

    Branded PDF for the homeowner, asset owner or tax-equity partner.

FAQs

Are these calculators free to use without a Sunhub account?

These pages explain planning inputs and purchasing considerations. Check the linked tool for current access requirements and available functions; a planning guide is not a live calculator.

Do the tools pull pricing from live marketplace listings?

Yes. The calculators price against live Sunhub catalog data rather than a static spreadsheet, so an ROI or BoM estimate reflects current marketplace pricing instead of stale numbers. That is what lets you quote off real figures and not guesses.

Can a BoM built in these tools convert directly into an RFQ?

Yes. A bill of materials built in the BoM Builder is designed to carry straight into an RFQ or order rather than being re-keyed, so you move from tool output into a quote without rebuilding the list. That keeps the parts, quantities, and live pricing intact through the handoff.

Explore tools & calculators

BoM Builder

Build a project bill of materials with live component pricing and availability. Free solar BoM builder tool that exports straight to RFQ on Sunhub.

Explore BoM Builder

Watt-class Comparator

Compare solar panels by efficiency, warranty and price-per-watt using live listing data. Free watt-class comparator tool for installers on Sunhub.

Explore Watt-class Comparator

Freight Estimator

Estimate LTL, FTL and ocean freight cost for solar equipment shipments in one form. Free freight estimator tool built for landed-cost quoting on Sunhub.

Explore Freight Estimator

Inverter Sizing

Size inverter capacity, MPPT and string configuration against NEC voltage and temperature requirements. Free inverter sizing tool for installers on Sunhub.

Explore Inverter Sizing

ROI Calculator

Model solar payback, LCOE and IRR against live equipment pricing and the current incentive stack. Free ROI calculator for residential, C&I and utility profiles.

Explore ROI Calculator

Sales & Proposal Templates

Download RFQ, contract and client proposal templates built for how solar deals actually move through procurement. Free sales templates for the trade on Sunhub.

Explore Sales & Proposal Templates

Take the next step

Tell us what your business needs. We’ll help you find the right way forward.

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