# Payaca > The operating system for clean tech installers. Payaca replaces CRM, job management, compliance tools, and field service apps for solar, heat pump, battery, and EV charger installation businesses in the UK and US. Payaca is purpose-built for clean tech installers (10–50 employees, 15–50+ installs/month) who have outgrown spreadsheets or failed with generic CRMs like Salesforce, HubSpot, or ServiceTitan. UK customers get MCS, BUS V5 (Boiler Upgrade Scheme), DNO/G98/G99, and Part L/P compliance built in. US customers get permit and project workflows. ISO 27001 certified. Founded 2020 in Bristol, UK. Note on URLs: this index lists UK URLs (`/uk/...`) for shared product pages. The site auto-routes visitors to their regional version based on geography (UK or US), so any `/uk/features/*` link redirects US visitors to `/us/features/*`. Locale-specific pages (UK compliance, US compliance) are listed separately under their own section. ## Product overview - [Payaca UK homepage](https://payaca.com/uk): Solar & Heat Pump CRM for UK installers. MCS compliance, DNO applications, design tool integrations. - [Payaca US homepage](https://payaca.com/us): Solar & Heat Pump CRM for US installers. Project tracking, permit workflows, field service. - [Pricing UK](https://payaca.com/pricing/uk): Core plan from £299/mo, Growth plan from £1,199/mo. Annual discount available. - [Pricing US](https://payaca.com/pricing/us): US pricing tiers for clean tech installers. - [Book a demo](https://payaca.com/uk/demo): Live walkthrough with the Payaca team. - [Trust & security](https://payaca.com/uk/trust): ISO 27001, data handling, uptime, GDPR. - [About Payaca](https://payaca.com/uk/about): Company, team, mission. ## Features - [CRM for clean tech](https://payaca.com/uk/features/crm): Pipeline, customer records, AI-powered search — purpose-built for installers. - [Sales & quoting](https://payaca.com/uk/features/sales-quoting): Interactive multi-option proposals, e-signatures, instant deposits. - [Operations & scheduling](https://payaca.com/uk/features/operations): Map-based scheduling, mobile app, real-time project tracking. - [Customer experience portal](https://payaca.com/uk/features/customer-experience): 24/7 customer portal, automated communications, online payments. - [Finance & reporting](https://payaca.com/uk/features/finance): Invoicing, Xero sync, project costing, margin analytics. - [Mobile app for field teams](https://payaca.com/uk/features/mobile-app): Offline-capable iOS/Android app with photos, forms, time tracking. - [Integrations](https://payaca.com/uk/features/integrations): Xero, QuickBooks, Gmail, Zapier, plus full API access. - [Workflow automations](https://payaca.com/uk/features/automations): Quote follow-ups, scheduling, invoicing, comms on autopilot. - [Service plans & maintenance](https://payaca.com/uk/features/service-plans): Recurring revenue from maintenance contracts and renewals. - [AI Agent Dave](https://payaca.com/uk/features/ai-agent-dave): Built-in AI assistant — ask questions in plain English, take actions on your data. ## UK compliance - [MCS compliance software](https://payaca.com/uk/features/compliance): Auto-generate MCS documentation, BUS V5 voucher evidence, EPC lookups, audit-ready. - [DNO grid applications](https://payaca.com/uk/features/grid-connections): Submit G98/G99 applications via ENA Connect, track status, generate commissioning forms. - [UK design tools](https://payaca.com/uk/features/design-tools-uk): EasyPV, Heatpunk, OpenSolar, Spruce — design specs flow into quotes. ## US-specific - [US compliance & permits](https://payaca.com/us/features/compliance-us): Project tracking, documentation management for US installers. - [US design tools](https://payaca.com/us/features/design-tools): OpenSolar and other solar design platform integrations. ## Industries - [Software for UK solar installers](https://payaca.com/uk/industries/solar-installers): CRM, DNO applications, MCS, design imports, field service. - [Software for UK heat pump installers](https://payaca.com/uk/industries/heat-pump-installers): MCS-compliant heat loss, commissioning, BUS voucher workflow. - [Software for UK battery installers](https://payaca.com/uk/industries/battery-installers): Battery storage projects, DNO applications, commissioning. - [Software for UK EV charger installers](https://payaca.com/uk/industries/ev-charger-installers): EV install workflows, OZEV grant docs, electrical sign-offs. - [Software for US solar installers](https://payaca.com/us/industries/solar-installers): US solar CRM and project management. - [Software for US heat pump installers](https://payaca.com/us/industries/heat-pump-installers): HVAC CRM and project workflows. ## Comparisons (Payaca vs alternatives) - [Payaca vs Commusoft](https://payaca.com/uk/compare/commusoft): Renewables-only Payaca vs Commusoft's broad UK trades platform. - [Payaca vs ServiceTitan](https://payaca.com/uk/compare/servicetitan): Clean tech-specific Payaca vs ServiceTitan's general field service. - [Payaca vs Salesforce](https://payaca.com/uk/compare/salesforce): Why solar businesses leave Salesforce for Payaca. - [Payaca vs HubSpot](https://payaca.com/uk/compare/hubspot): Why HubSpot doesn't fit clean tech operations. - [Payaca vs Pipedrive](https://payaca.com/uk/compare/pipedrive): Pipeline-focused CRM vs full operating system. - [Payaca vs Monday](https://payaca.com/uk/compare/monday): Generic project tool vs installer-specific platform. - [Payaca vs Jobber](https://payaca.com/uk/compare/jobber): Small trades software vs clean tech-specific. - [Payaca vs Simpro](https://payaca.com/uk/compare/simpro): Trade services vs renewables-purpose-built. - [Payaca vs Reonic](https://payaca.com/uk/compare/reonic): Two clean tech platforms compared. - [Payaca vs Jumptech](https://payaca.com/uk/compare/jumptech): EV-focused tooling vs full-stack installer platform. - [Payaca vs generic CRMs](https://payaca.com/uk/compare/generic-crms): Why clean tech needs purpose-built software. ## Calculators & tools - [Solar yield calculator](https://payaca.com/uk/solar-yield-calculator): MCS MIS-3002 compliant solar PV yield estimator by UK postcode. - [DNO application checker](https://payaca.com/uk/dno-application-checker): Determine G98 vs G99 DNO requirements for an installation. - [ROI calculator](https://payaca.com/uk/roi-calculator): Estimate Payaca ROI for your installation business. - [Growth scorecard](https://payaca.com/uk/growth-scorecard): Diagnostic tool for clean tech operations maturity. ## Blog & guides - [Heat pump commissioning under BUS V5: a 2026 compliance playbook](https://payaca.com/uk/blog/heat-pump-commissioning-compliance): Photo evidence, Ofgem audit prep, MCS-only definition under V5. - [Heat pump installer economics: what actually drives margin](https://payaca.com/uk/blog/heat-pump-installer-economics): Cost structure, pricing, and where margin leaks. - [Why solar installers are replacing their generic CRMs](https://payaca.com/uk/blog/why-solar-installers-replacing-generic-crms): The case against Salesforce, HubSpot, ServiceTitan for clean tech. - [The Warm Homes Plan: what growing installers need to know](https://payaca.com/uk/blog/warm-homes-plan-what-installers-need-to-know): UK government scheme implications for installers. - [Why solar companies are leaving Salesforce](https://payaca.com/uk/blog/why-solar-companies-leave-salesforce): Migration motivations and patterns. - [What software do solar installers use to manage their business](https://payaca.com/us/blog/what-software-do-solar-installers-use): US-focused solar software landscape overview. - [Best job management software for battery installers](https://payaca.com/us/blog/best-job-management-software-battery-installers): Battery-specific platform considerations. - [Blog index UK](https://payaca.com/uk/blog): Full archive of guides and industry analysis for UK installers. - [Blog index US](https://payaca.com/us/blog): Full archive for US installers. ## Customer evidence - [Case studies](https://payaca.com/uk/case-studies): Real customer stories from clean tech installers using Payaca. - [Customer testimonials and ratings](https://payaca.com/uk): 4.8/5 on Google, 4.9/5 on Capterra. ## Optional - [Careers at Payaca](https://payaca.com/uk/careers): Open roles. - [Contact Payaca](https://payaca.com/uk/contact): Sales, support, and partnership enquiries. - [Partners & integrations directory](https://payaca.com/uk/partners): Implementation, design, and ecosystem partners. - [Product updates](https://payaca.com/uk/updates): Release notes and changelog. - [Privacy policy](https://payaca.com/uk/legal/privacy) - [Terms of service](https://payaca.com/uk/legal/terms)