Nick Gogerty

Lead Acid Batteries: How Cheap Beat Cool at Google

The important thing to remember in batteries is use case, which John does a good job of explaining. The lead acid example on a per charge use is a great solution for power in demand during a back-up or fail over mode, ie irregular use with hopefully low and slow discharge rates. For regular cycling charges and high re-charge discharge rates other technologies may make more sense. Each market has its niche. Here is a spreadsheet showing ultracapicitor cost effectiveness based on duty cycles compared to various fuels. www.ultracapacitors.or...

Alternative Energy Storage: It's All About Price vs. Performance

the latest EEstor power patent filings made interesting readings. I am thinking about writing a piece on Transmission grid arbitrage and where the $/Mwhr vs. mileage makes sense. Using an ultra cap with estimates unlimited duty cycles could make this compelling and shift the network economics of larger grids providing larger stability. At a certain energy density physical electrical energy delivery via mega ultra-caps makes sense for production/transmissio... arbitrage. Have you come across any paper on this? I worked on the basics on XMAS eve before finishing a book, the math is pretty simple.

Alternative Energy Storage Needs to Take Baby Steps Before It Can Run

I met with Axion management and was surprised they were going after the UPS market where they are less competitive with lead acid. ON a per charge cycle (heavy duty) environment they make sense. Less so in a UPS market, why mention that market as it seems unlikely they will have impact. thoughts?