Commercial Solar + Battery Estimator

Turn kilowatts
into cash flow.

SolarIQ Pro delivers site-specific solar analysis, live utility rates from NREL and EIA, and engineering-grade proposals — in eight steps, on your iPad, in minutes.

3 APIs
Live Data Sources
8
Step Workflow
25 yr
ROI Projection
Step 2 of 8 — System
Recommended System
LIVE DATA
☀️
247.5
kW Solar Array
🔋
820
kWh Battery
💵
$544K
Gross Cost
📊
$398K
Net (MACRS)
Monthly Solar vs Usage
6.2yrs
Payback Period
Export PDF →
Real Government Data

Built on science,
not spreadsheets.

Every estimate pulls live data from the same authoritative sources used by engineers, utilities, and federal agencies — automatically, for any US address.

☀️
NREL PVWatts v8
Site-Specific Solar Resource
Thirty-year TMY3 irradiance data for the exact coordinates of your client's facility. Monthly AC output pre-corrected for temperature derating, inverter efficiency, and soiling losses.
EIA Retail Sales API v2
Utility-Level Electricity Rates
Commercial rates identified to the specific utility serving the address — not a state average. Three-step lookup: address geocode, NREL URDB utility ID, then EIA commercial revenue and sales data.
🌿
EPA eGRID 2023
Verified Emissions Equivalencies
CO2 avoided, trees planted, miles not driven — sourced from the EPA's national grid emissions factor of 0.386 kg CO2/kWh, degradation-adjusted across the full 25-year system life.
The Workflow

Eight steps from address
to signed proposal.

01
🏢
Peak Timing
Set peak demand hour and battery strategy. Solar availability at that hour determines battery size.
02
System Size
Array, battery, gross cost, and net cost. Adjust system size in real time and see every number update instantly.
03
☀️
Solar Analysis
NREL irradiance data. Monthly chart, usage vs production overlay, reference city comparison.
04
📈
Financial ROI
Set tax rate, toggle MACRS depreciation, review the full 5-year schedule, and see payback, ROI, and investment grade metrics.
05
📊
Seasonal Charts
Monthly energy and demand savings bar chart with a 12-month savings breakdown table showing dollar impact for every month.
06
🛰️
Project Summary
Satellite facility view, cost breakdown, model assumptions, and financing comparison.
07
📉
Break-Even
Investment grade metrics — IRR, NPV, ROI multiple — plus cash and financing break-even charts.
08
🌿
Impact Report
Animated environmental infographic with CO2, trees, miles, and homes — Year 1 and 25-year totals. Export proposal here.
7
PDF Pages Per Proposal
25yr
Financial Projection
3
Live Government APIs
5
Battery Strategies
PDF Export

Engineering-grade
reports, instantly.

One tap exports a fully branded, multi-page proposal. Your logo, your name, and your contact information on every page.

01
Cover Letter + Key Findings
14-row summary table, utility name, live rates, solar resource, and financing paragraph.
02
System Specification + MACRS
Full 5-year depreciation schedule at client tax rate, KPI tiles, roof area estimate.
03
Solar Resource Analysis
Monthly irradiance bar chart, site vs nine reference cities, NREL TMY3 attribution.
04
Environmental Impact
CO2 avoided, trees equivalent, homes powered — 25-year degradation-adjusted totals from EPA eGRID 2023.
05
Next Steps Roadmap
Seven-phase engagement process from site assessment to commissioned system.
Capabilities

Everything a solar
professional needs.

🎯
Real-Time Recalculation
Every slider, every input updates the entire financial model instantly. Explore scenarios live with your client without ever leaving the screen.
🔋
Five Battery Strategies
Peak demand shaving, backup resilience, self-consumption, TOU arbitrage, or solar only. Each modelled with peak-hour solar coincidence calculations.
📐
Engineering Accuracy
Uses PVWatts AC output (loss-adjusted) for sizing — not raw irradiance. MACRS depreciation, multi-year degradation, and demand charge modelling built in.
🏭
Eight Facility Types
Office, Retail, Warehouse, Manufacturing, Restaurant, Healthcare, Hotel, School. Each applies the correct load profile to distribute monthly consumption accurately.
💰
Financing Comparison
Full loan analysis alongside cash purchase. Configure term, rate, down payment, and origination. Break-even shown for both scenarios side by side.
📱
Works Offline
Internet required only for the initial data fetch. Once loaded, all calculations work without a connection. Client data stored securely on device.
Environmental Impact

Show the impact
beyond the invoice.

Every proposal includes a full environmental impact analysis sourced from EPA eGRID 2023. CO2 avoided, trees equivalent, homes powered — all degradation-adjusted over 25 years. Clients remember this page.

🌿
286 t
CO2 Avoided / yr
🌳
13,140
Trees Equivalent
🚗
706K
Miles Not Driven
🏠
28.5
Homes Powered
Your Own API Keys

Dedicated capacity.
No shared limits.

SolarIQ Pro works immediately with built-in keys. For high-volume professionals, register your own free government API keys in under two minutes.

NREL PVWatts v8
Solar Resource Data
Free access to NREL's national solar irradiance database. 1,000 requests per hour, dedicated to your account. No credit card required.
1
Visit developer.nrel.gov and click Sign Up
2
Your API key arrives by email within minutes
3
Paste into Settings → API Keys in SolarIQ Pro
developer.nrel.gov →
✓ Free — No credit card required
EIA API v2
Utility Rate Data
Free access to U.S. Energy Information Administration commercial electricity data. 5,000 requests per hour, dedicated to your account.
1
Visit api.eia.gov/signup/ and enter your email
2
Your API key arrives by email within minutes
3
Paste into Settings → API Keys in SolarIQ Pro
api.eia.gov/signup/ →
✓ Free — No credit card required
Common Questions

Before you download.

Three questions we hear from every solar professional before their first proposal.

📱
Does it work offline in a client meeting?
Yes. An internet connection is needed only for the initial data fetch when you enter a new address. Once solar resource data and utility rates are loaded, all eight steps and the PDF export work completely offline — no Wi-Fi anxiety in the room.
📈
Is the financial data accurate enough to show a real client?
Yes. Every number comes from NREL PVWatts v8, the EIA Retail Sales API, and EPA eGRID 2023 — the same government sources used by engineers and utilities. This is site-specific data for the exact address you enter, not a regional average or a spreadsheet estimate.
💰
Is this a subscription or a one-time purchase?
One-time purchase. No subscription, no in-app purchases, no ongoing fees. The full feature set — all eight steps, live API data, PDF export, and client management — is available immediately after purchase and stays that way.
AVAILABLE SOON ON THE APP STORE

Your next proposal
closes faster.

Download SolarIQ Pro and deliver engineering-grade solar proposals from any address, in any meeting, on your iPad or iPhone.

Coming soon to the App Store
For estimation and planning purposes only. Results are projections based on site-specific NREL and EIA data.
Copyright 2026 Eco-NRGY Solutions. All rights reserved.