Photovoltaic Technology
Solar panels convert sunlight into electricity through the photovoltaic effect. When photons from sunlight strike silicon cells, they knock electrons free, creating an electrical current. Modern solar panels come in different types:
- Monocrystalline: 20-22% efficiency[S1], made from single silicon crystals, performs better in low light
- Polycrystalline: 15-17% efficiency[S1], made from multiple silicon fragments, lower cost
- Thin-film: 10-12% efficiency[S1], flexible and lightweight, used in specialized applications
Panel efficiency represents the percentage of sunlight converted to electricity. A 20% efficient 300-watt panel produces 300 watts under standard test conditions (1000 W/m² irradiance, 25°C). Real-world performance varies based on temperature, angle, shading, and weather conditions.
Real Production Factors
Capacity Factor vs Nameplate Capacity: A 100MW solar farm doesn't produce 100MW constantly. The capacity factor—actual output divided by maximum possible output—typically ranges from 15-25% for solar[E1]. This means our 100MW farm produces an average of 15-25MW over a year, accounting for nighttime, weather, and seasonal variations.
Seasonal Variations: Solar production peaks in spring rather than summer. While summer has more daylight hours, panel efficiency decreases with high temperatures (typically 0.4% loss per °C above 25°C[E4]). Spring offers the ideal combination of sufficient sunlight and cooler temperatures. Winter production drops to 30-50% of summer levels in temperate climates.
The Duck Curve Challenge: Grid operators face the "duck curve"—a graph showing net electricity demand that looks like a duck. As solar generation ramps up mid-day, grid demand plummets. Then as sun sets and solar drops off, demand spikes sharply. This creates grid stability challenges and sometimes forces solar curtailment (wasting clean energy). Battery storage helps solve this by storing excess midday generation for evening use.
💡 Why Tokenization Matters Here
Understanding these production realities helps investors set appropriate expectations. Tokenization makes these sophisticated energy assets accessible to everyone, but informed investors understand that a 5kW system won't produce 5kW constantly—and that's perfectly normal. The economics work because of 20+ year lifespans and predictable average production.
Economics of Solar
| Metric | Residential | Commercial | Utility-Scale |
|---|---|---|---|
| Installation Cost | $2.50-3.50/watt | $1.50-2.50/watt | $0.85-1.20/watt |
| LCOE (Levelized Cost)[E2] | $0.10-0.15/kWh | $0.06-0.10/kWh | $0.03-0.06/kWh |
| O&M Costs | $15-25/kW/year | $10-20/kW/year | $8-15/kW/year |
| Degradation Rate[S2] | 0.5-0.8%/year | 0.5-0.8%/year | 0.5-0.7%/year |
LCOE (Levelized Cost of Energy) represents the total cost of building and operating a plant over its lifetime, divided by total energy produced. At $0.03-0.06/kWh for utility solar, it's now cheaper than natural gas ($0.04-0.08/kWh) and coal ($0.06-0.14/kWh) in most markets—even without subsidies[E2].