The Department of Energy (DOE) approved on May 27, 2015, the service contract of the largest solar PV power plant in the Philippines.

On May 30 morning, at the Provincial Convention & Event Center, nearly 2 thousand people representing the departments and sectors of 21 southern provinces and cities and local people attended the 2015 festival, an Event co-organized by Southern Power Corporation and the Department of Industry and Trade.

Implementing the electricity-saving program of the Central Power Corporation 2015, Thua Thien Hue Power Company deployed one week public communication campaign for power saving - the third Session in 2015, during May 25-31, 2015.

On May 24, 2015, the Ho Chi Minh City Department of Science and Technology, HCM City Youth Union held a creative contest in model assembling with the theme "Energy saving".

Storage of energy from renewable energy sources is vital to Europe’s energy policy. DTU Energy and partners use atomic modelling to develop a rechargeable zinc-air battery that is able to store large amounts of energy.

23 May 2015 Ha Noi – Secretary-General Ban Ki-moon and Viet Nam’s Deputy Prime Minister, Foreign Minister Pham Binh Minh cut the ribon to inaugurate the official opening of Green One UN House (GOUNH) in Vietnam.

On May 21, within the framework of the International Exhibition Entech HANOI 2015, the Conference "Solution to Improve the Energy Efficiency in Industry and Building" was held.

In the beginning of May, 2015, the Hanoi Energy Conservation Centre in collaboration with the Industrial Extension & Development Consulting and Energy Conservation Center held a training course on "Capacity Improvement for Energy Saving Policy Enactment for provincial and district officials in Lao Cai Province".

It is on May 20 morning in Hanoi when the International Trade Fair Entech HANOI 2015 was opened under the guidance of the Ministry of Industry and Trade, the Hanoi Municipal People's Committee and Busan (South Korea) city representatives.

On May 15, 2015, Vinh Phuc Power Company in collaboration with the Phuc Yen Town People's Committee held a ceremony to launch the program "Power Saving Family 2015". The program undergoes from now until the end of October 2015.

If energy continues to be wastefully used as it is now, by 2017 Vietnam will be under-supplied with its secondary energy sources.

On May 18, the workshop to "Review the Vietnam Energy Efficiency Standard and Labeling Program" was held. The project has been implemented by the Ministry of Industry and Trade since 2012 with funding from the Australian Government.

Bằng giải pháp đầu tư, Tổng công ty Cổ phần Dệt May Hà Nội không chỉ tiết kiệm trên 4 triệu kWh điện/năm, mà còn giúp giảm phát thải khí CO2 tương đương 4.000 tấn/năm.

On May 14, 2015, a workshop on clean energy took place in HCM City with the theme "Smart Solutions for Vietnam". The Workshop was co-organized by the US Consulate General in Ho Chi Minh City and Investment Newspaper to promote clean energy cooperation between the two countries.

On May 13, in Ha Nam province, Mr. Hoang Trung Hai, Deputy Prime Minister attended the groundbreaking ceremony for the construction of a factory of telecommunication equipment and LED Lighting, organized by KMW Vietnam Company (FDI Korean Enterprise).

NASA was conducting the Leading Edge Asynchronous Propeller Technology (LEAPTech) project — an initiative which may herald in a new age of aviation where aircraft are powered through electric motors.

Following the success of 6 annually organized exhibitions, the 7th international exhibition of Energy Efficiency - Hanoi Environment (Entech HANOI 2015), will officially take place from on May 20 -22, 2015 at the Expo Center International ICE Hanoi, 91 Tran Hung Dao, Hanoi.

The Son La Power Company has coordinated with the Son La People's Committee to launch the program "Power Saving Family 2015". The program will take place from May to October, 2015.

Official Letter No. 623/TTg-KTN issued by the Prime Minister dated May 5, 2015 endorsed the pilot implementation of a project on application of "Technology to using domestic solid waste as alternative fuel in cement plants in Vietnam".

Những năm qua Tổng công ty May Hưng Yên luôn chú trọng đến công tác tiết kiệm điện bởi đây là yếu tố quan trọng góp phần giảm chi phí sản xuất, hạ giá thành sản phẩm, nâng cao sức cạnh tranh, tăng hiệu quả sản xuất kinh doanh.