Author Archives: Jim Fink

Solar PV Efficiency

Unless you are fortunate enough to have a bunch of subsidies in your back pocket, Solar PV just isn’t that great of an investment. In fact it’s a horrible one. Frustrating isn’t it?

Just take the money and throw it in an S&P 500 index fund, or even one of today’s painfully low interest fixed income securities, and you’re likely to do better. You won’t even have to put any holes in your roof.

Granted panel costs have come down, but installed cost remains stubbornly high at $6.50 / watt or higher in places like California. Historically low efficiencies of 15-20%, and a 20% lifetime output depreciation add up to an ugly looking cash flow stream. So I was excited to see this article about a Silicon Valley startup making 44% efficient cells, and planning to go upwards of 50%. They do it by building multi-layer cells. Each layer is optimized to convert different spectral wavelengths of solar radiation to electricity. Of course we’ll need to see what kind of price tag they put on all this – the manufacturing process is rather tedious.

Click here for the IEEE article.

Forensic Engineering Areas of Expertise

Kleinholz Inc. has an extensive background in Forensic Engineering, having conducted 1,000s of hours of research and testing in several different fields. Our Forensic Engineering areas of expertise include:

  • Electric Shock & Electrocution
  • Ground Fault Interuption (GFCI or RCD)
  • Arc Fault Interuption (AFCI)
  • Fires of electrical origin
  • National Electric Code compliance
  • Electrical Safety
  • Power Quality
  • Grounding
  • Power Distribution Systems & Equipment
  • Wind Power Systems
  • Uninteruptable Power Supplies
  • HVAC Systems
  • Data Center Power & Cooling Systems
  • Data Center High Density Containment Solutions
  • Generators
  • Lighting
  • Network and Data Equipment
  • Lightning Protection
  • Security Systems
  • Power Factor Measurement and Correction
  • Electric and Magnetic Field Measurement
  • Electric Vehicles (EV) and Electric Vehicle Supply Equipment (EVSE)

Product Design and Prototyping

At Kleinholz Inc., our background in product design and prototpying is extensive. Some of the Product Design and Prototyping services we offer include:

  • Rent an Inventor service
  • Intellectual Property filings and research
  • Prototype building
  • Drafting and modeling
  • Manufacturer vetting and selection
  • Production bidding
  • Quality control / specification compliance checks

Technical Training Solutions

Kleinholz Inc. offers a wide array of technical training solutions and we specialize in making complex topics easily understandable by everyone. Our tech-friendly in-person or online training services include:

  • Electrical and HVAC topics
  • Hands on demonstrations
  • Power System Theory
  • OSHA required Arc Flash training
  • NFPA 70E
  • Standard for Electrical Safety in the Workplace
  • HVAC systems & theory
  • ASHRAE standards