PV Shading: Difference between revisions
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=About= | |||
*3 lengthwise strings | *3 lengthwise strings | ||
*3 bypass diodes | *3 bypass diodes | ||
*Lose 1/3 power for shading even a single cell in a string | *Lose 1/3 power for shading even a single cell in a string | ||
*But, entire string will run at 1/3 power loss? ''One panel knocks out a string'' - [https://www.deegesolar.co.uk/solar_panels_shading/#:~:text=This%20means%20if%20one%20panel,weakest%20panel%20within%20the%20system.] | |||
=Solutions= | |||
*Run parallel instead of string as much as possible. Tradeoff between wiring requirement and shading optimization. | |||
*Microinverters | |||
*Bypass diodes - can we add 6 diodes instead of usual 3? Or more? | |||
Latest revision as of 01:58, 22 July 2024
About
- 3 lengthwise strings
- 3 bypass diodes
- Lose 1/3 power for shading even a single cell in a string
- But, entire string will run at 1/3 power loss? One panel knocks out a string - [1]
Solutions
- Run parallel instead of string as much as possible. Tradeoff between wiring requirement and shading optimization.
- Microinverters
- Bypass diodes - can we add 6 diodes instead of usual 3? Or more?