Here are some videos with technical solar content. By solar installers for solar installers. And for those who want to learn more about solar.

• Intro to Solar
  Intro to Solar – Types of Solar Energy (3:34 mins)
  How Solar Works (4:59)
  Intro to Photovoltaic Solar (2:32)
  How Solar Cells work (1:27)
  Energy 101 (3:24)
  3 Types of Radiation (2:45)
  AC & DC Grounding Methods (3:38)

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• Different Types of Systems
  Overview of a Grid-Tied PV System (1:11)
  Overview of an Off-Grid PV System (0:59)
  Remote Area (7:44)

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• Designing a Solar System
  Tilt and Mount Angle (5:34)
  How to Size a Solar System (12:30)
  Solar System Design, Block Diagrams and Worksheets (1:40)
  MidNite Solar’s String Sizing Tool (8:42)
  Solar FAQ’s (4:12)
  NEC Grounding Code (5:19)

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• Estimating Solar Cost
  How to Calculate Solar Size and Cost (3:23)

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• Installation of Panels
  Panel Selection and Mounting (6:16)
  Ground Mount (3:22)
  Slanted Roof SolarWorld (1:39)
  SANYO Solar Install (4:12)

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• Installation of Racking
  Installing the Mounting System (5:31)
  Flat Roof Ballasted Soltecture (3:01)
  Tiled Roof Install (5:46)
  Utility Ground Mount System (3:37)
  Conergy Solar Mounting System (6:02)
  Flat Roof Ballast (1:43)
  Cooper B-Line’s F.A.S.T. System (4:52)
  Installing a Rail System on Tilt Legs (3:45)
  IronRidge Math for Tilt Mounts (6:17)
  IronRidge Math for Flush Mounts (7:46)
  IronRidge Roof Mounts (6:01)
  Grizzly Bear® Flat Roof Mounting System (6:05)
  Ground-Mount Racking System (2:06)
  Flashing your Roof

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• Installation of Inverters
  Inverter Installation (7:33)
  Inverter and Power Grid Connection (5:26)
  Enphase Micro Inverter (2:46)
  Installation guide Powador 30.0 TL3 – 39.0 TL3 (8:34)
  ReneSola Micro Inverter (1:24)

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• Installation of Batteries
  Solar Workshop – Batteries, Cabling & Fuses (6:05)
  Solar Battery System Maintenance (9:09)
  Maintaining deep-cycle batteries in the field (1:07:38)
  How to Size Battery Banks for Off-Grid Applications (52:42)
  Battery Myths & Legends (2:08)
  Deep-Cycle Battery Technologies (4:02)
  Understanding Battery Capacity & Life Expectations (3:10)
  Trojan Battery Industrial Line of Deep-Cycle Batteries (15:00)

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• Monitoring
  Solar Systems Monitoring & Analyzing (4:17)

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• Charge Controllers
  MPPT Charge Controller Installation (14:00)
  Classic Charge Controller Training (27:16)

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• Solar Financing
  New Mexico Solar Financing (1:50)

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• Solar tariffs, Incentives by market
  Solar market overview in 2011 (9:23)
  2012 Year-in-Review (1:15:00)

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• Becoming a Solar Installer
  Renewable Energy as a Career Path (4:59)
  How to learn more about solar? Online courses or classroom training? (3:07)
  Solar Training & NABCEP Certification (2:35)
  Mike Holt Electrical Instructors

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• Solar Sales
  The Secret to Solar Sales? Feet on the Street (4:53)
  Secrets of Closing & Overcoming Objections (10:39)