Model demand
Build the load from the household and project profile instead of selecting a package before understanding consumption.
Solar hot water software
Turn hot water demand into a complete contractor design.
SunProjeX connects household demand, system configuration, collector and tank selection, roof layout, performance calculations, and proposal output.
Demand first
Collector count should follow the load.
A useful solar hot water design begins with the people and usage the system will serve. SunProjeX organizes daily demand, storage, backup energy, system type, collector performance, and local solar conditions into one contractor workflow.
Match collectors and storage
Compare the selected collector area and tank volume with the design demand and system configuration.
Explain the result
Present solar fraction, energy contribution, equipment, roof layout, and price in customer facing terms.
Design context
Solar fraction is a system result, not a product label.
The same collector can produce different results at different sites or loads. Storage, draw pattern, backup type, climate, orientation, shading, piping, and controls all affect the outcome. SunProjeX keeps product data inside the project context so the proposal can describe the system rather than repeat a brochure rating.
Read the solar hot water sizing guide for the key inputs and questions.
Core design questions
- How much hot water is used each day?
- What solar contribution is appropriate?
- Which loop type fits the site?
- How much storage is needed?
- Which collectors are available in the market?
- Where will the array and tank fit?
One sales record
Keep the engineering explanation tied to the proposal.
When design results are copied manually into a separate proposal, assumptions drift and product details get lost. SunProjeX keeps the design, price, visuals, documents, and customer workflow connected to the same project.
Common questions
Questions contractors ask
What inputs are used to size a solar hot water system?
Common inputs include occupants, daily hot water demand, climate and solar resource, collector performance, storage volume, system type, backup energy, orientation, and shading.
What is solar fraction?
Solar fraction is the share of the hot water energy load supplied by solar energy over the modeled period. It depends on demand, storage, collector area, climate, controls, and system losses.
Does SunProjeX support different loop types?
The platform is being built to support open loop, drainback, and glycol closed loop workflows according to dealer capability and market configuration.
Can the proposal combine pool heating and hot water?
Yes. Contractors who sell both can carry the systems into one project and proposal when they share the same job.
The contractor ecosystem
Connect design with the company that sells, installs, and services it.
SunProjeX handles solar thermal design and proposals. Contractors can carry the broader operation into related ProjeX platforms and prepare for free consumer calculators.
For solar companiesSolarProjeX
Run leads, jobs, permits, dispatch, field work, payments, service, and reviews in one solar operating platform.
Explore SolarProjeX → For every tradeFieldProjeXBring the same connected sales, office, and field workflow to HVAC, electrical, plumbing, remodeling, and other contractor businesses.
Explore FieldProjeX → Available now · Free to consumersEmbeddable calculatorsPool heating and hot water estimates for contractor, dealer, and manufacturer websites, with the lead returned to the participating business.
Use the calculators →From design to proposal
Put the solar thermal workflow in one place.
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