Solar Powered Lead Acid Battery Charger（太阳能铅酸电池充电器）.pdfVIP

Solar Powered Lead Acid Battery Charger Final Report Spring Semester 2007 By Andrew Giddings Scott Johnson Jake Shelton Alex Wolke Steve Searcy Doug Antioco Prepared to partially fulfill the requirements for EE402 Department of Electrical and Computer Engineering Colorado State University Fort Collins, Colorado 80521 Report Approved: ______________________________________________ Project Advisor __________________________________ Senior Design Coordinator 1 ABSTRACT Our problem is the ever rising costs of non-renewable energy from natural resources and the resulting energy crisis facing our planet. Solar energy is not a revolutionary technology by any means and has long been criticized for it’s inefficiency and other shortcomings. Modern advances by companies such as DayStar Technologies have made great gains towards reducing the power conversion inefficiencies and have succeeded in creating a solar cell foil that is close to 20% efficient as opposed to the traditional 10% and have greatly reduced costs with CIGS technology [1]. Our product addresses the other implementation difficulties related to solar energy, primarily, “What do we do when the sun goes away every night”. We ought to store the energy right? And how do we propose to do t