Archive
2011.10.01
Series | Manufacturing Perspective No. 50
A new turning point towards an environmentally conscious society
Takao Tojyo
It has already been half a year since the Great East Japan Earthquake on March 11th. On August 26th, the "Renewable Energy Special Measures Bill" was passed and enacted in the Diet. Japan, which lacks energy resources, is trying to change its way of thinking about energy in the wake of this disaster. In 2008, the breakdown of electricity in Japan by source was 26.8% coal, 13% oil, 26.3% natural gas, 24% nuclear power, 7.1% hydroelectric power, and 2.8% other (from the "Nuclear Power and Energy" 2011 Drawing Collection: Composition Ratio of Electricity Generated by Source in Major Countries), and the proportion of renewable energy (natural energy) was less than 10%. Of the three initiatives the government plans to undertake over the next three years, "demand structure reform," "diversification of supply structure," "electricity system reform," and "acceleration of nuclear safety measures, including restarting reactors," "diversification of supply structure" is nothing other than increasing renewable energy.
However, there are many regulations and issues regarding the location of the power source. Countries such as the UK and Germany are focusing on offshore wind power generation, but in Japan's waters, where there are many rich fishing grounds, there are issues related to fishing rights. In addition, since many suitable sites on land are located in mountainous areas or along the coast, forest development and road construction are necessary, but there are also issues such as bird strikes and noise if there are houses nearby. Small-scale power generation using rivers must of course clear legal regulations such as the River Act and consider the protection of the natural environment. Excellent natural environments are also excellent scenic spots, and various issues pile up depending on the power source, including the preservation of such scenery. However, choosing natural energy as one of the main energy sources is something that must be tackled for the sustainability of this country and the earth, and it can be said to be the right choice. Although it is essential to reach a consensus among the entire nation on many issues, it seems that small-scale power generation in particular is worth considering in terms of the possibility of local production and consumption of energy and risk diversification.
Although a complete agreement was not reached at COP16 (the 16th Conference of the Parties to the United Nations Framework Convention on Climate Change) held in Cancun, Mexico last year, it was a conference that made it clear that the whole world is committed to working toward reducing greenhouse gas emissions. It is the responsibility of those of us living today to leave this beautiful global environment for the next generation. Further efforts to reduce CO2 emissions are consistent with the "demand structure reform" that the country is working on. Currently, "power saving" efforts are being made nationwide, and efforts to reduce electricity by 15% to 30% are continuing in ordinary households and companies. If this concept can be established as "efficient use of energy" rather than "endurance" rather than "temporary power saving," it is expected to result in a very large reduction in CO2 emissions. It is said that electricity rates will increase with the passage of the "Renewable Energy Special Measures Bill," and that the burden will be borne equally by all citizens, but if efficient energy use becomes established, the burden on households will likely approach the same level as before the earthquake.
As society faces dramatic changes in energy issues, it will become increasingly important for us Architectural Design to propose efficient energy use. It is essential to propose not just energy-saving and environmentally conscious designs, but also how they are used. For example, companies are now beginning to adopt LED task lighting as a power-saving measure in offices. This, combined with reducing the illuminance of ambient ceiling lighting, has a significant effect. However, it goes without saying that proposals must also ensure a comfortable office working environment. Proposals for optimal operation of operating equipment, whether in new construction or renovation, are also highly effective. We are now at a turning point toward creating environmentally friendly architecture and cities. There are many issues, both big and small, that must be addressed across a variety of frameworks for the future, decades and centuries from now.
Profile
Former Representative Director, Deputy President Mitsubishi Jisho Design Inc.
Takao Tojyo
Tojo Takao
Update : 2011.10.01