Born from Disaster: Japan Establishes First Microgrid Community

Published at Renewable Energy World --- Following the 2011 earthquake, tsunami and nuclear disaster in Japan, one city decided to transition to a clean, renewable future and became Japan's first microgrid community.

Although Japan's Fukushima prefecture is most commonly associated with the 2011 disaster due to the nuclear power melt-down, Miyazaki prefecture, located north of Fukushima, suffered the largest death toll, close to 10,000, and the largest flood damage in the nation.

Located on the coast, Higashimatsushima city was no exception. It had a catastrophic tsunami-caused flood, which put 65 percent of the city under water, with over 1,100 lives lost. Approximately 10,000 residents lost their homes and were forced to evacuate.

“After the disaster, some parts of the town didn’t get electricity for up to three months,” said Tohoru Ishigaki at the office of Future City Initiative under the city’s Department of Disaster Recovery Policy. “We strongly felt [after the disaster] that our responsibility was to provide reliable energy.”
Turn Local Tragedy Into a New and Vibrant Vision

To create a safe, resilient and sustainable society for the remaining population of 40,000, the city decided to deploy distributed, clean renewable energy sources. Under post-disaster recovery and reconstruction plans, the city set a bold goal to become a Net Zero Energy City by 2022, supplying the entire city with locally produced energy.

As a first step, the city turned a flood-affected former city park into a 2-MW solar photovoltaic (PV) project. This project symbolizes the city’s commitment to energy self-sufficiency. Mitsui & Co., Ltd, one of the largest trading company in Japan, completed this system in the summer 2013. The company also built PV carport systems with a total capacity of 270 kW at three locations on high ground, away from the vulnerable coastline. These sites are designated for evacuations and solar power will provide emergency power....Read More Here

相次ぐスマートメーターの設置拒否、既存メーターの継続利用に特別料金を徴収へ

Published at Nikkei Business --- 　日本では電力自由化に向けて、スマートメーターの設置が本格化していると聞く。ところが米国では、至る所でスマートメーターの導入に「待った」がかかっている。サービス向上とコスト削減に貢献すると言われるスマートメーター。なぜ導入を拒否する事例が後を絶たないのか。

　スマートメーターは、双方向通信機能を備えた電力消費量を測定するシステムである。従来のアナログメーターとの大きな違いは、測定した電力消費量をリアルタイムで無線送信できることや、電力会社がリモートでサービスの接続・切断などができること、さらに電力供給量を制御できることなどである。

　ワシントンDCに拠点を置くIEE （Innovation Electricity Efficiency）研究所が、2013年8月に発表したレポートによると、2013年7月時点で4600万台以上のスマートメーターが、全米に設置済みという。これは全米の電力契約数の約32％に当たる。

　米国連邦政府は「米国再生・再投資法（America Recovery and Reinvestment Act）」に基づき、「スマートグリッド投資補助金（Smart Grid Investment Grant：SGIG）」を創設して、スマートメーターに対する開発支援を積極的に行っている。Read More Here