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Technology for Good – episode thirty six with Esteban Kolsky

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Welcome to episode thirty six of the Technology for Good hangout. In this week’s show our guest is independent analyst Enterprise Irregulars, but this was the first time Esteban and I had had a face-to-face conversation (or screen-to-screen, more accurately!).

The change of clocks in Europe the weekend before the show almost derailed us, and there was a mix-up (my fault) whereby Esteban didn’t get to join the show until twenty minutes in, but still, it was a great show and we had some awesome discussions.

Some of the more fascinating stories we looked at on the show, included some major moves on the energy storage front, big announcements from Google and Microsoft on the health/fitness front, and the new partnership between Twitter and IBM.

Here is the full list of stories that we covered in this week’s show:

 

Climate

Energy

Health

Transparency

Social

Apps

Hardware

Wearables

Comms

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Interesting energy storage solutions?

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Rechargeable batteries

Photo credit Tom Raftery

I published this post on the IBM Global Eco Jam last week and it generated some interesting feedback so I thought I’d re-publish it here too to solicit your thoughts –

I was at the NewNet CleanTech Investors Summit in London last November.

At this event a poll was taken asking which CleanTech issues were perceived as being most important/having the most potential by the investment community – the answers were Energy Efficiency and Energy Storage.

I have seen several posts here on efficiency but none on energy storage so I said I’d start one.

What are the most interesting energy storage solutions people are seeing emerging.

I’ll kick off –

The two most interesting I have seen are
1. Thermal storage using heavily insulated bricks (!) for domestic energy storage (resistive heating) and
2. Metal air batteries – zinc air batteries are scheduled to come to market later this year. Zinc is abundant, cheap, non-toxic, non-explosive and readily recyclable. Zinc air batteries have an energy density about two to three times that of lithium ion batteries.

With that energy density and price point, it should be possible to build utility scale storage (allowing renewables to store excess energy when the wind is blowing strongly, and sell it when the wind drops or demand increases, for example).

Are there any other options people are seeing (and let’s leave pumped hydro out of this discussion – it is old tech, expensive and has significant environmental impacts).

One of the respondents pointed me to news out of Stanford in December that Stanford scientists are harnessing nanotechnology to quickly produce ultra-lightweight, bendable batteries and supercapacitors in from everyday paper!

What other interesting forms of energy storage have you come across?

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Friday Morning Green Numbers round-up 01/29/2010

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Green numbers

Photo credit Unhindered by Talent

Here is this Friday’s Green Numbers round-up:

Posted from Diigo. The rest of my favorite links are here.