Manage commercial solar projects from bid to commissioning
Commercial solar projects are a different business from residential. Longer timelines, multi-stakeholder sales, G99/G100 compliance, and milestone billing. Payaca gives you the operational backbone to manage it all without outgrowing spreadsheets or fighting a generic CRM.
Greenfield Retail Park
250 kW20%Post-DNO
25%Post-structural
25%Commissioning
30%
Sound familiar?
These are the problems we hear from commercial solar installers every week. If you're nodding along, you're not alone.
G99 applications taking 8-12 weeks with no visibility on progress
Multi-phase projects tracked across spreadsheets and email threads
Proposal revisions for different system configurations eating up days
Payment schedules tied to project milestones that slip constantly
Structural assessments, planning permissions, and permit packages scattered across folders
Longer payment cycles straining cash flow with no financial visibility
Built for commercial solar installers
Purpose-built features that understand your business
Compliance built in
Tools that understand UK regulations and certification requirements
Primarily residential? See our solar installer page for resi-focused workflows
Learn moreWe help you build the process, not just sell you software
Most software vendors hand you a login and wish you luck. We work alongside you to build operational systems that actually work for your team.
Project lifecycle mapping
We map your commercial solar workflow from bid and site survey through DNO, installation phases, and commissioning, then configure Payaca to match.
Data migration
We migrate your customers, active projects, and historical data from spreadsheets, CRMs, or other systems.
Team training
Role-based training for estimators, project managers, and site teams. Everyone learns the workflows relevant to their role.
Go-live support
We're alongside you during the first weeks of live operation, refining processes and answering questions.
Connects with your tools
Integrations built for commercial solar installers
Frequently asked questions
- How does Payaca handle G99 applications for commercial solar?
- Payaca connects to ENA Connect to submit G99 applications for systems over 16A per phase. You can track application status in real-time and link all grid connection documentation to the project.
- Can Payaca manage milestone-based payment schedules?
- Yes. You can set up percentage-based payment schedules tied to project milestones: deposit on acceptance, payment after structural work, post-installation, and final commissioning. Invoices can be triggered as milestones complete.
- How does change order management work?
- When project scope changes, you create a change order that tracks the revised costs, updated margins, and any impact on the payment schedule. Both your team and the client have a clear audit trail of what changed and why.
- Can I present multiple system configurations to a client?
- Yes. Multi-option proposals let you present different configurations (for example, a 100kW rooftop vs a 250kW system with battery storage) on a single proposal. Clients compare options side-by-side and accept digitally.
- Does Payaca handle both commercial and residential solar?
- Yes. You can configure separate pipelines for residential and commercial projects, each with their own stages, required fields, and document templates. Many installers use Payaca for both.
- What about MCS documentation for commercial installations?
- For systems under 50kW that fall within MCS certification, Payaca generates compliant documentation including handover packs, commissioning certificates, and customer declarations. Larger systems can use custom document templates.
- How long does implementation take for a commercial solar business?
- Most commercial solar businesses are fully operational on Payaca within 2-4 weeks. We map your specific project lifecycle, configure pipeline stages, set up payment schedules, and train your team.
Ready to streamline your clean tech operations?
Join 500+ installers who've transformed their business with Payaca. We'll handle your workflow mapping, process optimisation, and data migration.