教育驱动
Certain aspects of our work can’t be measured in a bottom-line number on a financial statement. Some of our most significant accomplishments occur as we invest in community education programs to help children realize their potential and teach them about electrical and water safety.
每年春天, fifth graders around Grant County visit Big Bend 社区 College for 太阳的比赛 and 能源 Science Days. 事件, which is presented in partnership with several area businesses and organizations, 关注包括水电在内的可再生能源, 太阳能和风能. Students enjoy hands-on experiences with one of the highlights including the opportunity to build and race solar-powered cars.
整个夏天, Grant PUD visits local libraries throughout the county as part of the North Central Regional Library’s Summer Reading Program. The program shows how the naturally-occurring water cycle allows power companies like Grant PUD to generate electricity while also teaching about how power is delivered to customers throughout Grant County.
Grant PUD很荣幸能成为水基金会的合作伙伴 & 能源教育(FWEE) 水电和Stem职业学院. The Foundation provides a weeklong career exploration opportunity for high school students. 在学院期间, students learn from industry leaders and discover hydro industry careers all while earning college credit.
产卵
产卵发生在每年夏末和秋天. A female Fall Chinook salmon lays up to 4,500 eggs in a gravel nest called a redd. After the dad salmon fertilizes the eggs, the mom covers the redd with gravel.
小鲑鱼
卵孵化成一种叫做alevin的小幼虫. alevin有一个大的, orange yolk sac below it belly which contains a balanced diet of protein, 糖, 维生素和矿物质. 有点像他们随身携带的一碗麦片.
弗莱
The yolk sac gets eaten while the alevin changes to a tiny fish called a fry, less than an inch long. 然后鱼苗开始自己寻找食物.
小鱼
大约四个月后, the fry will have grown to about the length of an adult human’s finger, 它们被称为小鱼. 它们开始向下游游向海洋.
太平洋之旅
小鲑鱼的海洋之旅充满了障碍. 1000人中只有3人能存活下来. Ducks, herons, kingfishers, other birds and wildlife eat young salmon. Other fish like northern pikeminnow like to live in the waters surrounding the hydroelectric dams and feed on the small salmon as well. The smart, young salmon travel at night to avoid these natural predators. The fish must also navigate their way past hydroelectric projects on the Columbia River.
小鲑鱼
当小奇努克鲑鱼向下游移动时, it imprints the smells of the stream where it hatched as well as different water bodies on its journey to the ocean. This homing skill will guide the fall Chinook salmon back home after it spends two to five years growing in the ocean. 当小鱼靠近海洋的海水时, 它会发生显著的生理变化，以成为幼鱼.
太平洋上的生命
一旦它们到达太平洋, 小鲑鱼以浮游动物为食, 虾, 甲壳类动物, 凤尾鱼和鲱鱼, 还有其他的鱼. In two to five years, fall Chinook salmon can grow to weight over 20 pounds.
返回产卵
Every salmon has its own time to return to the fresh water and its birth stream to spawn. 一旦这个循环完成，雄性和雌性鲑鱼就会死亡. Their bodies decay in the streams and provide food for all kinds of other animals. 这就是生命的循环.
水电
水力发电是由落水的力量产生的. The Columbia River moves through our dams and spins turbine blades below the water’s surface.
Grant PUD has the capacity to generate more than 2,100 megawatts of clean, renewable hydropower.
水轮机和发电机
落水使涡轮机叶片在水面下旋转. 与涡轮机相连的轴在发电机内部旋转. The generator has an electromagnet that moves around a ring of copper, 将电子以光速通过电线输送到家庭, 企业和工厂. Using hydropower avoids nearly 200 million metric tons of carbon pollution in the U.S. 每年. 这相当于3800多万辆乘用车的产量.
升压变压器
Power generated by the turbine inside the dam travels to a transformer that “steps up” or increases the voltage for efficient transport over transmission lines.
传输
输电线路可以远距离输送电力.
Grant PUD maintains 474 miles of high voltage transmission lines throughout our 2,777平方英里的服务区域.
降压变压器
From the transmission tower, the electricity goes to a transformer at a substation near your house. The transformer “steps down” or decreases the voltage for distribution.
Over 55 substations transform from high to low (or vice versa) in Grant County.
分布
分布 lines carry electricity from the local substation to your home. Transformers on power poles decrease the voltage before it enters your house.
我们向当地家庭输送能源, 企业和农场通过2,781英里的架空配电线路和1,073英里的地下输电线.
了解更多关于我们的能源
Grant PUD delivers power to more than 40,000 customers throughout the county. 访问我们的 能源页面 了解更多关于发电、输送和项目的知识.