Tag Archives : lighting


solar roof panels and vending machines

energy efficiency Japanese style….part II

In the places I visited, namely Tokyo, and in the countryside in Hakone Prefecture, a few solar panels were spotted handling self contained signage duties. In Hakone, where you would think that the wide open countryside would encourage spacious living areas, the hotel rooms are even smaller than Tokyo, and the corridor is littered with [...]


energy efficiency Japanese style

I was excited to have the opportunity travel to Japan over the lunar new holiday, it was to be my first visit, and besides the tourist must dos and sightseeing, and the like I was looking forward to a first hand view of the much cited Japanese efficiency, and particularly their efforts in the energy [...]

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Lamps and Mercury Pollution

This morning I walked passed by another dead fluorescent lamp heading to Hong Kong’s scarce landfill (refer photograph). Sadly it is a common sight in this district. What I find annoying is that the current state of affairs makes no sense. No sense economically because it costs many times more to carry out remedial work [...]


Energy Audit – more wasted light energy

1.00 pm, Sunday, 18 January 2008, Kowloon Bay, Hong Kong It is a beautiful bright sunny Sunday afternoon, the store is obviously closed, and the shutters are down. Yet all seven (7) exterior lamps are burning brightly, here is a photograph captured with my camera phone. Did the owner forget? or believe it would not [...]

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Energy Audit – its not just about the lux

It is not just about the recording lighting level (known as LUX) Lighting efficacy – Energy audits for buildings, typically include a lighting audit. But just recording the lighting level (known as the lux level) in the various rooms is not enough. We need to assess the effectiveness of the installation. During a recent energy [...]


Energy Efficiency As A Global Concern

31 October 2008 – I was honoured to be invited by HKTDC to give a speech at the 2008 ECO ASIA EXPO regarding Energy Efficiency. Special thanks for HKDTC’s Mr Matthew Ip for his gracious introduction. Here are some more photographs from the venue. Sadly, especially considering this was an environmenal exhitbition, each of the [...]

Inefficient 100 Watt incandescent lamps