Gray (unit) Gray (unit) The gray (symbol: Gy) is a derived unit of ionizing radiation dose in the International System of Units (SI). It is defined as the absorption of one joule of radiation energy per kilogram of matter. It is used as a unit of the radiation quantity absorbed dose which measures the energy deposited in a unit mass at a certain position, and of the radiation quantity kerma, which is the amount of energy that is transferred from photons to electrons per unit mass at a certain position. The corresponding cgs unit to the gray is the rad (equivalent to
Energy and Climate Partnership of the Americas produce energy. Energy Innovation Center: Promotes and advances clean energy projects through mobilization of funding, knowledge dissemination and technical expertise. Chile Renewable Energy Center: The long-term goal for the center is to serve as a tool and resource for the region. Energy Efficiency: Promote best policy practices through assistance in developing building codes and other standards in the industrial and residential sectors, as well as training for energy audits. Renewable Energy: Accelerate clean energy deployment via project support, policy dialogues, scientific collaboration, and the clean energy technology network. Cleaner and More Efficient Use of Fossil Fuels: Promote clean energy technologies