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2. Solar panel efficiency ● Energy conversion efficiency – Electrical output / incident energy (sunlight) ● Max. 86% in theory ● Angle at which sunlight hits a solar cell – Motors for continuous adjustment

3. Solar panel efficiency ● Type of solar cell ● Emerging PV: up to about 14% ● Thin-Film Technologies: up to about 20% ● Crystalline Si Cells: up to about 25% ● Multijunction Cells: up to about 44%

4. Solar panel efficiency ● Solar panels v solar thermal systems ● Solar thermal magazine: up to 60% for some solar thermal plants ● Compare prices ● Compare efficiency values ● Compare maintenance ● Compare noise

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