Solar Operations
Solar ERP Explained: What Solar Installers Should Look For in 2026
Most solar companies do not fail on the roof. They lose money in the gaps — between the sale and the permit, the permit and the install, the install and permission to operate. Every one of those gaps is usually a different piece of software, and none of them talk to each other.
A solar ERP is the answer to that problem. This article explains what a solar ERP is, how it differs from a CRM or a proposal tool, and the seven things worth evaluating before you commit to one in 2026.
What “ERP” actually means for a solar company
ERP stands for enterprise resource planning. In plain terms, it is the system that runs the core operations of a business in one place instead of many. Traditional ERPs were built for manufacturers and distributors — inventory, finance, procurement, HR.
A solar ERP takes that same idea and rebuilds it around how a solar installer actually works. Instead of generic modules, it maps to the real stages of a solar job:
- Lead and sales management — canvassing, field sales, pipeline, and customer communication.
- Financing — coordinating lenders and loan approvals without leaving the system.
- Permitting and compliance — organizing AHJ, utility, and HOA requirements per market.
- Project and install tracking — moving each job through its milestones to PTO.
- Finance and pay — job costing, commissions, and reporting.
The point is not the list of modules. It is that they run on the same data. When a deal closes, the financing, permitting, install schedule, and commission all reference the same record — no one re-types the customer into five systems.
Solar ERP vs. CRM vs. proposal tool: what’s the difference?
Installers often already own a CRM and a design or proposal tool. Those are useful, but they solve a slice of the job, not the whole thing. Here is how the categories compare.
| Solar CRM | Proposal / design tool | Solar ERP | |
|---|---|---|---|
| Primary job | Manage leads and customer relationships | Design the system and generate a quote | Run the entire operation, lead to PTO |
| Permitting / AHJ | Not typically | No | Yes — organized by jurisdiction |
| Lender coordination | Rarely | No | Yes — multiple lenders in one place |
| Install & phase tracking | Limited | No | Yes — milestone by milestone |
| Job costing & commissions | Rarely | No | Yes |
| Source of truth | Sales only | Design only | The whole business |
A CRM and a proposal tool are point solutions. A solar ERP is the layer that connects them — and often the system installers move to once the count of disconnected tools becomes the bottleneck.
The stages a solar ERP should cover
Sales that feed operations, not a separate silo
The sale is where the record starts. A solar ERP should capture canvassing and field sales, track the pipeline, and hand a clean, complete record to operations automatically. Core365 also offers optional AI agents in this area — for example, an agent that builds a lender-ready solar proposal from a short conversation, and sales-coaching agents. These AI agents are part of Core365’s higher “Core + AI Agents” tier rather than the base platform.
Financing without portal juggling
Solar runs on financing, and financing usually means logging into a different lender portal for every deal. Core365’s Lender365 module consolidates lender access through API integrations, naming partners including GoodLeap, Mosaic, and Sunlight, so applications, approvals, and stipulations are managed in one place instead of across multiple portals.
Permitting and AHJ compliance, organized per market
This is where solar projects stall. Every jurisdiction, utility, and HOA has its own requirements, and they change. Core365’s Spark365 module gives teams a centralized place to document and maintain AHJ requirements, permitting contacts, design prerequisites, inspection protocols, and correction notes per market.
One honest caveat, straight from Core365’s own site: Spark365 does not supply or maintain the regulatory data for you. It is the structured system where your team collects, organizes, and standardizes the requirements relevant to your markets — so the knowledge lives in one place instead of in one person’s head or a scattered spreadsheet.
Install and phase tracking to PTO
The stretch from signed contract to permission to operate is the longest and least visible part of a solar job. A solar ERP should show exactly what stage every project is in and who owns the next step. Core365 frames its Renewable Energy product around moving projects “from lead to PTO in one platform,” with automated workflows and job-level visibility.
Licensing, job costing, and commissions
Company licensing has to stay current across markets (Core365’s Coral module tracks company licensing and registration). Job costing protects margin at the project level. And commissions — often the messiest spreadsheet in a solar company — calculate off the same data that runs everything else, so reps get paid on what actually happened.
The 7 things solar installers should evaluate in 2026
- 1
True lead-to-PTO coverage. Does it run the whole lifecycle, or just one stage dressed up as a platform? Ask to see a single record move from sale to PTO.
- 2
Permitting and AHJ management. Can your team organize jurisdiction, utility, and HOA requirements per market in one place — and keep them current?
- 3
Lender coordination. Does it consolidate the lenders you actually use, or will reps still bounce between portals?
- 4
Job-level costing and margin visibility. Can leadership see profitability by project, not just total revenue?
- 5
Commission handling. Does it calculate commissions off live operational data, or is payroll still a separate spreadsheet chase?
- 6
Compliance and documentation. Are licensing, permits, contracts, and audit trails built in — not bolted on?
- 7
Pricing that doesn’t punish growth. Per-seat pricing gets expensive as you scale a sales org. Core365, for example, publishes a custom model with unlimited users. Compare total cost against every separate tool you run today, plus the hidden cost of re-keying and delays.
Core365 fits this category: it is built specifically for solar (alongside roofing, security, and pest control), with permitting (Spark365), lender coordination (Lender365), licensing (Coral), job costing, commissions, and unlimited users. It is not the only option, and the right fit depends on your size, your markets, and how much of your stack you want to consolidate. Core365 publishes outcome figures it attributes to the platform — including 15+ hours saved weekly, 3× operational scalability, 100% compliance tracking, and roughly 40% faster PTO timelines. Treat those as vendor claims to validate in a demo against your own numbers.
Key takeaways
- A solar ERP runs the full solar lifecycle — sales, financing, permitting, install, and PTO — on one shared system, not scattered tools.
- It is broader than a CRM or a proposal tool, which each cover a single stage.
- The stages that matter most are the ones between the sale and PTO: financing, AHJ/permitting, and install tracking — exactly where projects stall.
- Note the honest limit: permitting modules organize your regulatory knowledge; they don't replace your responsibility to know each jurisdiction's rules.
- Evaluate on lead-to-PTO coverage, permitting, lender coordination, job costing, commissions, compliance, and growth-friendly pricing.
If your solar operation runs across a CRM, a proposal tool, lender portals, permitting spreadsheets, and a commissions file that never quite reconciles, it may be worth seeing what one system looks like. Book a Core365 demo or explore the Renewable Energy platform.