Is DIY Solar Right for You?
Installing your own solar panels can save you thousands of dollars and provide deep satisfaction in powering your home with your own hands. But it's not for everyone. Here's how to know if DIY is the right choice:
DIY Solar is Great If You:
- Are comfortable working on ladders and roofs
- Have basic construction/mechanical skills
- Can follow detailed instructions
- Have time to dedicate to the project (2-4 days)
- Want to save 30-50% on installation costs
- Enjoy hands-on projects
Consider Professional Installation If:
- You're uncomfortable with heights or roof work
- Your roof is steep (over 6/12 pitch) or complex
- You have physical limitations
- Time is more valuable than cost savings
- You want a complete hands-off experience
The Prairie Sun Approach
We're installers first, sellers second. Whether you DIY with our support or hire us for full installation, we'll help you get solar done right. Our DIY kits come with the same equipment we use on professional installs, plus unlimited technical support.
Permits & Regulations
Before you start, understand the legal requirements in your area. Here's the typical Canadian framework:
What You Can Do Yourself
- Install mounting rails and hardware on your roof
- Mount solar panels to the racking system
- Run DC wiring between panels
- Install ground-mount structures
What Requires a Licensed Electrician
- AC electrical connections to your panel
- Inverter installation and wiring
- Meter/disconnect installation
- Final electrical inspection sign-off
Permits Required
- Building Permit: Required in most municipalities for structural roof modifications
- Electrical Permit: Required for all electrical work (your electrician typically pulls this)
- Utility Interconnection: Application to your utility for net metering connection
Pro Tip: Plan Early
Apply for permits before ordering equipment. Some municipalities take 2-4 weeks for permit approval. We can provide stamped engineering drawings for your permit application.
System Planning
Proper planning is the foundation of a successful DIY solar project. Here's how to size and design your system:
Step 1: Analyze Your Electricity Usage
Gather your last 12 months of electricity bills. Note your annual kWh usage. Most homes use 8,000-15,000 kWh per year.
Step 2: Calculate System Size
In most Canadian locations, plan for approximately 1,100-1,300 kWh production per kW of solar annually. Use this formula:
System Size (kW) = Annual Usage (kWh) ÷ 1,200
Example: 12,000 kWh annual usage ÷ 1,200 = 10 kW system
Step 3: Assess Your Roof
- Orientation: South-facing is ideal; east/west work with 10-15% less production
- Pitch: 20-40° is optimal; flat roofs need tilt mounts
- Shading: Avoid areas shaded by trees, chimneys, or other buildings
- Condition: Roof should have 15+ years of life remaining
- Space: Each panel needs ~20 sq ft; plan for ~200 sq ft per 1 kW
Step 4: String Inverter vs. Microinverters
| Feature | String Inverter | Microinverters |
|---|
| Cost | Lower | Higher |
| Shading tolerance | Poor | Excellent |
| Panel-level monitoring | No (add-on) | Yes |
| DIY difficulty | Moderate | Easier |
| Best for | Unshaded, simple roofs | Complex roofs, shading |
Equipment You Need
Solar System Components
- Solar Panels: We recommend monocrystalline panels, 400-450W each
- Inverter: String inverter or microinverters (included in our kits)
- Racking System: Rail-based or rail-less mounting system
- Wiring: PV wire, connectors, conduit
- Disconnect: AC disconnect switch near meter
- Monitoring: WiFi monitoring system (often included with inverter)
Tools Required
- Cordless drill/impact driver
- Socket set (metric and standard)
- Adjustable wrench
- Wire strippers and crimpers
- Multimeter
- Stud finder
- Chalk line
- Tape measure
- Level
- Ladder (rated for roof access)
Safety Equipment (Essential!)
- Roof anchor and harness system
- Hard hat
- Safety glasses
- Work gloves
- Non-slip footwear
- First aid kit
Safety First
Roof work and electrical systems are dangerous. Never work alone. Use proper fall protection. Never work on wet roofs. If you're uncomfortable at any point, stop and call for professional help.
Step-by-Step Installation
Day 1: Roof Preparation & Layout
- Safety setup: Install roof anchors, set up harness system, position ladder securely
- Mark rafter locations: Using a stud finder from inside (attic) or outside, mark all rafter positions with chalk
- Plan array layout: Mark where each rail will run, ensuring alignment with rafters
- Install flashing: Pre-drill pilot holes, install L-feet or flashed mounts at marked locations
Day 1-2: Rail Installation
- Attach rails to mounts: Slide rails into mounting brackets, leave loose for adjustment
- Level and align: Use string line or laser to ensure rails are level and parallel
- Torque bolts: Once aligned, torque all connections to manufacturer specs
- Install wire clips: Add cable management clips along rails
Day 2-3: Panel Installation
- Position panels: Carry panels to roof one at a time (panels are heavy - 50+ lbs)
- Attach mid and end clamps: Slide panels into position, secure with clamps
- Connect wiring: Connect panel MC4 connectors to form strings
- Route cables: Run cables through clips, down to inverter location
- Install conduit: Protect cables running down roof/wall in conduit
Panel Handling Tips
- Never carry more than one panel at a time on the roof
- Keep panels face-down when not installing to prevent activation
- Use a rope system to lift panels rather than carrying up ladder
- Work from the top of the array down
Electrical Connection
This section describes what your electrician will do. While you shouldn't perform this work yourself, understanding the process helps you communicate effectively with your electrician.
Inverter Installation
- Mount inverter in designated location (garage, basement, or exterior)
- Connect DC input from solar array
- Connect AC output to dedicated breaker
- Ground system properly
Disconnect & Meter
- Install AC disconnect near utility meter
- Coordinate with utility for meter upgrade/replacement
- Label all disconnects per code requirements
Inspection
Your electrician will schedule the electrical inspection. The inspector will verify:
- Proper wire sizing and connections
- Grounding compliance
- Disconnect functionality
- Labeling and documentation
Testing & Commissioning
Pre-Connection Checks
- Visual inspection: Check all connections, ensure no damaged wires
- Voltage test: Use multimeter to verify string voltage matches expected value
- Polarity check: Confirm positive and negative are correctly connected
System Startup
- Turn on DC disconnect
- Turn on AC disconnect
- Inverter should initialize and connect to grid
- Verify production on monitoring app
Monitoring Setup
Connect your monitoring system to WiFi. Most inverters have apps that show:
- Real-time production
- Daily/monthly/yearly energy totals
- System health alerts
- Panel-level performance (with microinverters)
Congratulations!
Once your utility inspection is complete and meter is installed, you're generating clean energy! Monitor your system regularly for the first few weeks to ensure everything is performing as expected.