Doubling your project count does not double your design output. If one senior engineer still checks every drawing, a second hire only makes that engineer’s queue longer. This guide shows how to scale a solar design team in India so that output grows and rework does not.
Quick answer. To scale a solar design team, split work by stage, not by project. Juniors draft layouts and BOQs from fixed templates, mid-level engineers own SLDs and PVsyst models, and a senior reviewer runs a written QC gate. Measure capacity in design hours per project type. Add an overflow partner for peaks instead of hiring for your busiest month.
TL;DR
- The bottleneck in a growing team is review, not drafting.
- Assign work by stage: layout, electrical, yield, structural, documentation.
- Templates and a written checklist let a junior produce work a senior can check quickly.
- Plan capacity in hours per project type, from your own timesheets.
- Hire for your steady load. Cover peaks with an overflow partner.
This guide is for the operations head or founder of an Indian EPC with two to ten designers. It does not repeat the hire-or-outsource maths. For that, read our designer hiring vs outsourcing ROI walkthrough.
Why Solar Design Teams Stall as They Grow
Small teams work because one person holds the whole project in their head. That stops working at around the point where nobody can review every file personally.
The symptoms are easy to spot:
- Drawings wait days for review, then come back with the same comments.
- Each designer uses their own layer names, title blocks and BOQ format.
- CEIG or DISCOM comments repeat across projects.
- One resignation leaves projects nobody else can open.
Our post on what to do when a solar designer quits covers the last one in detail.
How to Scale a Solar Design Team in India: Split by Stage
The fix is to break a project into stages and give each stage an owner level. A designer then repeats one kind of task, gets faster and makes fewer errors.
| Stage | Main outputs | Owner level | Reviewed by |
|---|---|---|---|
| Layout | Module layout, setbacks, walkways | Junior designer | Mid-level engineer |
| BOQ | Material take-off from layout | Junior designer | Mid-level engineer |
| Electrical | String design, SLD, cable schedule | Mid-level engineer | Senior reviewer |
| Yield | PVsyst model and report | Mid-level engineer | Senior reviewer |
| Structural | Load checks, structure drawings | Structural engineer | Senior reviewer |
| Approvals | CEIG or DISCOM drawing set | Mid-level engineer | Senior reviewer |
This keeps senior time for the decisions that carry risk. Juniors learn the site rules. Mid-level engineers learn the electrical and yield rules. The senior checks what matters for safety, approval and yield.
Build Templates Before You Hire
New hires copy whatever they find in the shared drive. Give them the right things to copy.
- CAD template: fixed layers, title block, scale and legend.
- SLD library: standard blocks for inverters, ACDB, protection and metering.
- BOQ format: one sheet with fixed line items and units.
- PVsyst defaults: your agreed loss assumptions, with a note on when to change them. PVsyst licences are per seat, so plan seats by stage.
- State approval notes: one page per state on what the CEIG or DISCOM asks for. Start from our state solar policies guide.
Templates turn review into a comparison. The reviewer checks what changed from the standard, not the whole drawing.
Set Up a Two-Step QC Gate
A written gate catches errors before they reach the client or the inspector. Use two steps.
Step 1, self-check. The designer ticks a checklist before sending the file. Example items:
- string voltage stays within inverter limits at the lowest site temperature;
- cable sizes match the cable schedule;
- setbacks and walkways are marked.
Step 2, peer review. A reviewer at the next level checks the same list and signs it. Repeated comments go back into the checklist so the next project avoids them.
Electrical items should follow the Central Electricity Authority (CEA) regulations and the state’s inspection practice. Structural items should cite the Bureau of Indian Standards (BIS) code you design to, such as IS 875 for wind loads. For a fuller list, see our white-label solar design QA checklist.
Plan Capacity in Hours, Not Headcount
Ask how many design hours each project type takes, from your own timesheets. A 50 kWp RCC rooftop and a 2 MWp ground mount are not one “project” each.
Build a simple table from the last three months of work:
| Project type | Your average design hours | Projects per month | Hours needed |
|---|---|---|---|
| Rooftop under 100 kWp | from timesheets | from pipeline | hours × projects |
| C&I rooftop 100 kWp to 1 MWp | from timesheets | from pipeline | hours × projects |
| Ground mount above 1 MWp | from timesheets | from pipeline | hours × projects |
| Revisions and approvals | from timesheets | all active jobs | hours × jobs |
Compare total hours needed with the productive hours your team has. Leave room for leave, training and rework. If the gap appears only in some months, that is a peak, not a reason to hire.
Hire and Train in the Right Order
Hire in this order as load grows:
- A second reviewer before a fourth or fifth drafter. Review is the constraint.
- Juniors for layout and BOQ once templates exist.
- A structural engineer when ground mount or tin-shed work becomes regular.
Site knowledge helps junior designers. The National Institute of Solar Energy runs the Suryamitra programme, a 600-hour installation and O&M course. It does not train designers, but its graduates understand how a site is built. Pay data for each level is in our solar designer salary guide.
When to Add an Overflow Partner
Hiring for your busiest month leaves people idle in the quiet ones. An overflow partner covers the gap if the work comes back in your format.
Before you send work out, agree three things:
- your templates, layer names and BOQ format;
- the QC checklist the partner must sign;
- a dated delivery plan per project stage. Our solar design SLA and turnaround guide shows what to put in writing.
Heaven Designs does this kind of overflow work for EPCs, from bid-stage pre-design to CEIG electrical drawings. Our guide on offshore solar engineering quality control explains how to check a partner’s output.
FAQ
How many projects can one solar designer handle per month? It depends on project type and how much review they need. Measure your own hours per project type rather than relying on a general figure.
Should juniors use PVsyst? They can build models from your defaults. A mid-level or senior engineer should approve the loss assumptions before a report goes out.
When is a team too big for one reviewer? When files wait for review more than they wait for drafting. Add a reviewer before you add drafters.
Next Step
Pick one stage, usually layout, and write its template and checklist this month. If peaks are already pushing your delivery dates, send your next overflow job through our project quote form. We reply within 1 business day.