Trace the roof. Suncast does the rest.
Outline the roof on satellite imagery and Suncast places the panels, models the yield with PVGIS solar data, prices the job in rand and turns it into a branded proposal, all in one sitting.
No credit card. Free for approved installers during the pilot.
Roof faces
- North · 26°12 panels
- West · 26°4 panels
- System
- 8,8 kWp
- 16 × 550 W
- Per year
- 14 690 kWh
- PVGIS solar data
- Savings
- R 2 430
- per month, year 1
- Payback
- 5,2 yrs
- with 10 kWh battery
Battery shifts unused daytime solar into the evening.
PVGIS solar data
Yield for any South African address, per roof face.
Rand pricing with VAT
Cost, markup, margin and VAT before the customer sees a price.
Branded proposals
Your logo, colours and terms on a PDF ready to send.
Runs in the browser
Nothing to install. Laptop or tablet, office or site.
From satellite image to panel layout in minutes
No more sketching on printouts or guessing panel counts. Draw the roof once and every number in the quote follows from it.
- 01
Find the address
Type the street address and the satellite view of the roof loads.
- 02
Trace the roof
Click around each roof face. Mark skylights, vents and chimneys.
- 03
Panels placed for you
Suncast fills each face, keeping setbacks and clearances. Tap a panel to remove it.
- 04
Check it in 3D
Orbit around the house to check pitch and layout before you quote.
- Find the site by street address
- Trace each roof face on satellite imagery
- Setbacks, skylights, vents and chimneys respected
- Portrait or landscape, remove single panels
- Pitch and orientation per face, checked in 3D
- Production per face from PVGIS, updated as you draw
Numbers your customers can trust
Suncast models how much solar the household uses directly, how much the battery shifts into the evening and what is exported, so savings aren't overstated.
Monthly production. PVGIS data for the exact roof faces, not a national average.
Realistic savings. Daytime use, battery size and feed-in tariff all count.
Payback that holds up. Yearly tariff increases and panel ageing built in.
Your brand. Logo, colours, contact details and terms on every page.
Solar proposal
Example home, Pretoria
8,8 kWp solar with 10 kWh battery
16 × 550 W panels on the north and west roof faces
Per year
14 690 kWh
Savings / month
R 2 430
Payback
5,2 yrs
Monthly production (kWh)
Everything from first site visit to signed proposal
Stop switching between spreadsheets, drawing tools and Word templates. Suncast covers the whole sales job in three connected modules.
Design
Model the roof. Place the panels.
Find the site by address, trace roof planes on satellite imagery, mark obstacles and let Suncast lay out the panels in 2D and 3D. Then size inverters and batteries for backup.
Explore Design →Sell
Numbers your customers trust.
Estimate yearly yield with PVGIS solar data for any South African address, price the job from your own equipment list and generate a branded proposal.
Explore Sell →Manage
Every customer, every quote, one place.
Keep customers, projects, equipment and proposals together, see what is waiting on a reply and invite your team to work in the same account.
Explore Manage →Six steps from customer to proposal
A guided workflow so every quote is complete and consistent, whoever on your team builds it.
- 01
Add the customer
Capture contact details, address and monthly electricity use or bill.
- 02
Model the roof
Trace roof planes on the satellite view and mark obstacles.
- 03
Place panels
Fill each roof plane with panels and fine-tune the layout in 3D.
- 04
Size inverter and battery
Match the inverter and battery to the load and backup needs.
- 05
Check energy and savings
See yearly yield, savings and payback from PVGIS solar data.
- 06
Send the proposal
Generate a branded proposal with pricing ready to send.
For every kind of installation

Home systems quoted while you are still on site
Battery-backed rooftop systems for homeowners who want to beat load shedding and lower their bill.
- Battery sizing for backup hours
- Simple savings story for homeowners
- Proposal in minutes, not days
Built with installers, not just for them
We are inviting a small group of South African installers to use Suncast before it launches. You get the tool free; we get honest feedback from people who quote solar every day.
Apply for the pilotWhat you get
- Full access to Suncast, free for 30 days
- Up to 3 users for your team
- A direct line to the people building it
- Founding-member pricing: a discount, and a price that's locked for as long as you stay
What we ask
- Use Suncast on real quotes
- Two short feedback calls during the 30 days
- Tell us honestly what's missing or slowing you down
Questions installers ask us
Who is Suncast for?
Solar installers and EPC teams, starting in South Africa. If you design and quote rooftop or ground-mounted PV systems, with or without batteries, Suncast is built for you.
What does the pilot involve?
Approved installers use Suncast free for 30 days on real jobs. In return we ask for honest feedback: two short calls and permission to learn from how you use the product.
Where does the energy data come from?
Yield estimates use PVGIS, the European Commission's free solar radiation database, which covers all of South Africa.
Do I need to install anything?
No. Suncast runs in your web browser on a laptop or tablet.
Is my customer data safe?
Each company's data is kept separate at the database level, so other Suncast users can never see your customers or quotes. We handle personal information in line with POPIA.
What happens after the pilot?
Paid plans open after the pilot. You will get plenty of notice before anything changes, and nobody is charged without choosing a plan first.
Built in South Africa, for South African installers first.
Design it. Price it. Close it.
Join a small group of South African installers using Suncast free during the pilot, and help shape what we build next.