<p>For Berkeley specifically, the most appropriate majors are all in the College of Engineering:</p>
<p>Electrical Engineering and Computer Science (EECS): most alternative energy involves conversion to electric power (EE), and students majoring in EECS can take additional CS courses easily within their majors. [Electrical</a> Engineering & Computer Sciences — UC Berkeley College of Engineering](<a href=“http://coe.berkeley.edu/departments/electrical-engineering-and-computer-sciences.html]Electrical”>http://coe.berkeley.edu/departments/electrical-engineering-and-computer-sciences.html)</p>
<p>Energy Engineering: [Energy</a> Engineering — UC Berkeley College of Engineering](<a href=“http://coe.berkeley.edu/departments/engineering-science/energy-engineering.html]Energy”>Energy Engineering - Berkeley Engineering)</p>
<p>Environmental Engineering Science: [Environmental</a> Engineering Science — UC Berkeley College of Engineering](<a href=“http://coe.berkeley.edu/departments/engineering-science/environmental-engineering-science.html]Environmental”>http://coe.berkeley.edu/departments/engineering-science/environmental-engineering-science.html)</p>
<p>Other engineering majors, with appropriate choice of in-major electives (as described in the Environmental Engineering Science page above).</p>
<p>Note that Energy Engineering and Environmental Engineering Science are not ABET-accredited. If ABET accreditation is important to you (for Professional Engineer licensing (most common for civil engineering) or patent law), you may want to select an ABET-accredited degree program with appropriate in-major electives.</p>