Launch your solar project
with utmost peace of mind!
SriWatt is a small device you place on site. It measures the real sunlight and weather there, then a sophisticated algorithm corrects the data — so banks and buyers trust the numbers.
The four types of data inaccuracy
Bad input data quietly wrecks solar forecasts — and the finance that depends on them. These are the four most common culprits.
Bad metadata
30% of projects have missing or wrong tilt/azimuth data — enough to throw the forecast off by more than 15% (NREL).
Micro-shading
A vent, pole or single wire shading just 1–2% of a system can cut its output by 30–50%.
Albedo guesswork
The default “0.2” ground-reflectivity assumption misses up to 12.4% of the gain bifacial panels actually capture.
Soiling losses
A flat 2% dust assumption is fiction. In dry climates losses reach 35%, building ~0.5% a day.
$5B wasted every year
Roughly 94% of solar pre-sales spend is lost, and lenders add 10–35% to finance costs — almost all of it for want of real, on-site data.
One small device. Three steps.
SriWatt sits between your simulation tool and your customer. It adds the one thing a desktop forecast can't: measured reality.
SriWatt records real sunlight, surface heat and shading at the actual site — second by second, not from a 4 km satellite cell.
Our sophisticated algorithm learns the gap between your simulation and what the site really does, then corrects the data for that exact location.
You get a clear, bank-ready P50/P90 yield report. Faster approvals, sharper returns, fewer arguments about the numbers.
Plan the system before you buy the hardware
Every SriWatt account includes a design workbench: enter a site and a system size and get modeled yield, the optimum orientation, a loss breakdown, financial payback and a single-line diagram — before a device ever ships.
Yield & orientation
Models energy yield from real site irradiance, then sweeps tilt and azimuth to find the best fixed orientation for the roof.
Loss breakdown & financials
Breaks down soiling, mismatch, wiring and inverter losses, then turns the result into year-1 savings, payback and 25-year lifetime value.
Diagram & exports
Generates the project's single-line diagram and exports a design report or quote as PDF, CSV or JSON.
Built for real sites
Industrial rooftops
Factories and sheds where heat, dust and vents hit output hardest.
Farms & estates
Rural and agri sites where local weather changes field to field.
Developers & IPPs
Portfolio owners who need bankable numbers, fast, across many sites.
Built for the environment it measures
We don't believe in fragile hardware. SriWatt is built on a proprietary edge-intelligence architecture across two distinct deployment tiers, ensuring your data survives the environments it measures.
SriWatt Core Deployment
Engineered for commercial rooftops, urban installations, and standard utility-scale sites with cellular coverage.
- ✓ Cellular LTE transmission
- ✓ Single HDR optical sensor
- ✓ Standard IP67 weather sealing
- ✓ Real-time edge processing
Absolute No Man's Land
Built for the edge of the world. Total autonomy for remote deserts, offshore sites, and deep-grid areas with zero infrastructure.
- ✓ Satellite (NTN) & Cellular connectivity
- ✓ Dual-lens environmental scanning
- ✓ Submersion-proof sealing
- ✓ Extended-duration local data buffer for zero-connectivity stretches
Confidential Pricing. Available by pre-approval only for extreme remote sites.
Retire the industry's "golden module" guesswork
Simulation software like PVsyst runs on .pan files — a module's idealized performance curve, built from manufacturer or lab-bench testing. It's the same static file used on every rooftop, and it typically overstates real-world yield by 1–3%. A deployed SriWatt device replaces it with a .sri file: the module's actual, measured performance at that exact site.
.pan files
The industry-standard format for PVsyst and similar simulation tools.
- Idealized curve from manufacturer or lab-bench testing
- One static file, reused on every site regardless of local climate
- A documented 1–3% optimism gap vs. real-world yield
- Never updates once it's issued
.sri files
Generated on-site by a deployed SriWatt device.
- ✓ Built from I-V sweeps captured on the installed module, on site
- ✓ Measured performance ratio, specific yield & degradation rate, with a confidence interval
- ✓ Tamper-evident — every file carries a data-integrity hash and full provenance
- ✓ Updates over time into a location-specific digital twin
Numbers from the field, not from a deck
Early field deployments and signed pipeline back these figures — with shipping hardware, not slideware.
Field-tested on 1,200commercial & industrial solar sites · Live clusters across India · Partnered with a Solar Body in India representing 1,500 EPCs.
“The trust it builds with the customer is priceless. Showing them real data from their own roof removes almost all performance objections.”
— Pilot participant
“The SriWatt report isn't just a sales tool — it's a financing tool. It dramatically sped up our talks with the banks.”
— Pilot participant
“A near-40% conversion rate is unheard of in this industry. The tool pays for itself many times over.”
— Pilot participant
The data behind the device
Independent, data-driven analyses of how on-site ground truth de-risks solar — from pre-sales costs to the cost of capital.
Secure your 3-year price lock-in
By paying annually as one of our first 250 subscribers, you guarantee a price lock-in for 3 years. Monthly options open once these 250 spots are filled.
Not sure how many you need?
Calculate your device count on the booking page and we'll work out the right count for your sites.
Calculate device needsDo you know your requirement?
If you're sure you need at least 20 devices, clicking Book now books the number you entered and takes a 50% advance payment (€9,990 for 20).