Off-Grid Power ROI Calculator
Compare the 10-year total cost of diesel generators, unmanaged solar, and Clear Blue managed solar with Illumience. See your breakeven point and environmental impact instantly.
Configure Your Scenario
How many remote sites need power?
How This Calculator Works
This calculator compares three approaches to powering remote off-grid sites over a 10-year period. It models the full total cost of ownership (TCO), not just the sticker price. For diesel generators, this includes fuel (with annual price escalation), fuel delivery logistics, scheduled maintenance, major overhauls, and full unit replacement. For unmanaged solar, it includes hardware, installation, reactive maintenance labor, and earlier battery replacements due to unoptimized charge management. For Clear Blue managed solar, it adds the Illumience cloud platform fee but reduces maintenance costs and extends battery life through active monitoring and optimization.
Key Assumptions
The default values are based on industry data from GSMA, IRENA, and EPA for remote telecom and infrastructure sites. Diesel fuel consumption reflects real genset behavior: small generators serving low loads (30-500W) are massively oversized and still consume 1.0-1.8 liters per hour regardless of load. This structural inefficiency is itself a key reason solar outperforms diesel at these load levels. Solar hardware costs scale with location because colder, darker climates require larger arrays and more battery storage (1.35x oversizing in tropical zones vs. 3.5x in arctic). Fuel delivery costs vary dramatically by site accessibility, from $500 per trip for road-accessible sites to $5,000+ for helicopter-only locations.
The Managed vs. Unmanaged Difference
The gap between Clear Blue managed solar and unmanaged solar comes from three factors. First, Illumience cloud monitoring optimizes charge cycles and battery temperature management, extending battery life by 1-2 years (replacement at Year 7-8 vs. Year 5-6 for unmanaged). Second, condition-based maintenance is cheaper than reactive emergency dispatches. Third, proactive fault detection delivers 99%+ uptime vs. 85-95% for unmanaged systems where faults go undetected for weeks or months.
For a deeper look at the managed solar advantage, see our Managed Solar vs. Diesel comparison or the Managed vs. Unmanaged Solar guide.