PV panel offer comparison
2026-05-04 14:02
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Assumptions
Temperature:
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Installation:
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Baseline yield:
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Horizon:
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Currency:
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Full comparison table
| # | Manufacturer / Model | Power | Price | Y1 kWh | 30-year kWh | LCOE | Score |
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Visualization
Power degradation over time
Year-1 + annual decline from datasheet. Higher curve = less efficiency loss.Cumulative energy yield
Total kWh produced cumulatively year by year. Steeper curves = higher energy volume.LCOE — energy unit cost
Levelized Cost of Energy = price / 30-year yield. Lower bar = better financial choice.Module cards
Glossary — what each metric means
Tc Pmax — Maximum-power temperature coefficient [%/°C]. How much the panel’s power drops per degree above 25°C (STC). Typical: -0.30 %/°C. Smaller absolute value = better in heat.
Y1 / annual — First-year + per-year degradation. Datasheet typical: 2% Y1 + 0.55% annual. Lower values = slower aging.
Y1 yield — kWh produced per panel in the first year, given the operating temperature and installation type.
30-year (kWh) — Total kWh per panel over 30 years — after accounting for degradation and temperature losses.
% in year 30 — Percentage of nameplate power remaining after 30 years. E.g. 85% means a 400 Wp panel still delivers 340 Wp.
LCOE — Levelized Cost of Energy = panel price / 30-year yield [currency/kWh]. How much one kWh produced by this panel costs. Lower LCOE = better financially.
Score (0-100) — Composite combining 3 dimensions: 30-year energy (45%), LCOE (40%), warranty length (15%). Min-max normalized within the comparison set.
Baseline yield [kWh/kWp/year] — How much energy 1 kWp of installation produces per year. Depends on installation type (ground ~1100, equator-facing pitched ~1050, E-W ~950) and on local irradiance — override if you have PVGIS data for your site.