Solo Review
Fast, accurate solar proposals with managed design
Score
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Quick verdict
Solo is best for Residential solar sales teams that want fast, highly accurate proposals via managed design without building an in-house design team, and that prefer per-proposal pricing. Pricing is custom-quoted (sales call required). Strongest fit: Solar.
About Solo
Solo (gosolo.io) attacks the solar proposal problem with a managed-design model: rather than asking your reps to build every design themselves, Solo pairs software with 25+ in-house designers who turn around proposals in under 15 minutes, marketed at DNV-certified 99.9% production accuracy. Founded in 2018 in Lehi, Utah (and backed by a growth investment from Bregal Sagemount), it's aimed at residential solar sales teams that want speed and accuracy without standing up their own design department.
The pitch is that proposal accuracy is a revenue problem, not just an operations one: an inaccurate proposal that engineering and permitting can't actually build leads to change orders and cancellations after the sale. Solo's managed design plus in-app tools — reps can update system size, equipment, pricing, and financing live during the homeowner conversation — aim to close that gap, with integrated financing from 7+ lenders and integration with 70+ tools. Solo also offers Solo Studio, a full in-house design suite for teams that want to design themselves with managed support as backup.
The trade-offs are pricing and scope. Solo charges per proposal (roughly $29-$32 each), which can reach $1,600-$8,000+/month at typical volumes and makes monthly cost scale directly with activity — predictable per-unit but potentially steep and variable. It's residential-only, and it doesn't provide in-house electrical engineering, so permit-ready stamped output still lives elsewhere. Internal surveys cite 98% customer satisfaction, with praise centered on speed and financing integration.
Pricing
| Tier | Price | Notes |
|---|---|---|
| Per proposal (~$29-$32) | Custom quote | Entry tier |
Per-proposal pricing of roughly $29-$32/proposal; reaches ~$1,600-$8,000+/month at typical volumes. No monthly minimums or annual commitment, with volume discounts as usage rises.
Solo uses custom-quoted pricing — typical for enterprise field service platforms where deployment includes data migration, training, and pricebook setup. Expect a 30-60 minute discovery call before getting a number, and the spread between quoted figures can be wide depending on your team size, vertical, and feature requirements. Always get quotes in writing and confirm what's included (number of users, integrations, support tier) before signing.
Pricing verified 2026-05-28. Vendors change pricing without notice; verify with Solo before purchasing.
Estimate uses the published starting tier and detects per-user vs per-company pricing automatically. For an exact quote at your team size and feature requirements, request a quote from Solo.
Key features
Integrations
Pros
- + Managed design removes a bottleneck
25+ in-house designers turn proposals around in under 15 minutes, so sales teams don't need to build (or staff) a design department. For a growing org, that outsourced throughput is the core value.
- + High production accuracy
Solo markets DNV-certified 99.9% production accuracy. Accurate proposals reduce post-sale change orders and cancellations caused by designs engineering and permitting can't actually build — an underrated revenue protector.
- + In-conversation editing
Reps can adjust system size, equipment, pricing, and financing live with the homeowner, keeping the deal moving in the moment rather than going back to the office to revise.
- + Integrated financing and broad integrations
Financing from 7+ lenders is built in, and Solo integrates with 70+ tools, so monthly-payment options and deal data flow into the workflow you already run.
- + Per-proposal pricing with no lock-in
No monthly minimums or annual commitment means you pay for what you use, with volume discounts — low risk to start and scalable for teams that don't want a fixed subscription.
Cons
- − Expensive at high volume
At ~$29-$32 per proposal, costs reach $1,600-$8,000+/month at typical volumes. High-volume teams may find a flat-rate platform cheaper, so model your proposal count against the per-unit price.
- − Unpredictable monthly cost
Because billing scales with proposal volume, monthly spend moves with your activity. That's fair per-unit but harder to budget than a flat subscription.
- − Residential-only scope
Solo is built for residential solar proposals. Commercial projects and other trades are out of scope, so it's a focused tool rather than a broad platform.
- − No in-house electrical engineering
Solo focuses on the sales proposal, not stamped engineering. Permit-ready single-line diagrams and electrical design still require separate tooling or an engineering partner.
- − Reliance on a managed-service queue
The managed-design model means you depend on Solo's design team for turnaround. It's fast (under 15 minutes), but for teams that want full in-house control, Solo Studio exists as the alternative path.
Implementation timeline
3–6 months for full deployment
Solo is lighter to adopt than a full ops platform because the managed-design model offloads the hardest work to Solo's designers — you submit the job and get a proposal back quickly. Onboarding focuses on configuring your equipment catalog, pricing, financing lenders, and proposal templates so the managed designs reflect your real offers, plus training reps on the in-app editing flow for live homeowner conversations. Connect Solo to your CRM and the other tools in your stack (it integrates with 70+) so deal and proposal data flow cleanly. The main decision during setup is the per-proposal economics: estimate your monthly proposal volume and model the ~$29-$32-per-proposal cost against a flat-rate alternative so there are no billing surprises. Teams that want to bring design in-house can layer in Solo Studio, but most start with managed design for speed. As with other proposal tools, plan your permit-ready electrical output separately, since Solo doesn't provide in-house engineering.
Best for / Watch out for
Best for
Residential solar sales teams that want fast, highly accurate proposals via managed design without building an in-house design team, and that prefer per-proposal pricing
Watch out for
Per-proposal pricing gets expensive at high volume; residential-only; no in-house electrical engineering; monthly cost can be unpredictable since it scales with proposal volume
Available for these trades
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User reviews
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Frequently asked questions
How does Solo's pricing work?
Solo charges per proposal — roughly $29-$32 each — with no monthly minimums or annual commitment and volume discounts as usage rises. At typical volumes that works out to about $1,600-$8,000+/month. The model is predictable per-unit but scales directly with how many proposals you generate, so model your volume before committing.
What is managed design in Solo?
Instead of your reps building every design, Solo's 25+ in-house designers produce the proposal for you in under 15 minutes at a marketed 99.9% production accuracy. It removes the need to staff your own design team. Teams that prefer to design in-house can use Solo Studio, with managed design available as backup.
Solo vs Aurora Solar?
Aurora is a do-it-yourself design platform (you build designs in-house) with contact-sales pricing; Solo is a managed-design service (Solo's team builds your proposals) priced per proposal. Teams that don't want to staff designers and value fast turnaround lean Solo; teams that want full in-house design control and volume at a fixed cost lean Aurora. Compare your proposal volume and whether you want to own design.
Does Solo handle commercial solar or permits?
No on both fully. Solo is residential-only and focuses on the sales proposal, not stamped engineering — it doesn't provide in-house electrical engineering, so permit-ready output requires separate tooling or an engineering partner. If you do commercial work, Solo isn't the fit.
Is Solo worth it for a high-volume team?
It depends on the math. The managed-design speed and accuracy are valuable, but at ~$29-$32 per proposal, high-volume teams can spend $8,000+/month, where a flat-rate platform might be cheaper. Estimate your monthly proposal count and compare per-proposal cost against flat-rate alternatives before scaling on Solo.
Ready to try Solo?
Get a custom quote — pricing is not public.
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