Each state in the US has different requirements for installing PV systems. Some states, like Colorado, require a certain number of NABCEP certified installers per job, whereas in North Carolina, you must be an electrician to sell or install a PV system.
PV is a proven technology, and the industry is growing at a very rapid pace. Training is essential, and NABCEP certification is driving the industry to a high standard. Train, obtain your certification, align yourself with a company that offers quality products, and stay abreast of new products, methods, processes and code changes.
There's clearly a demand for engineering degrees, particularly mechanical engineers to work on the maintenance and design of wind power components. For the first time ever there's a career path for environmental engineers, as well, as we're witnessing a renaissance of excitement for a field that didn't even exist 5-8 years ago.
The NY Times reports that the federal government is pouring $500 million into training for green jobs, and the sector devoted to energy efficiency is estimated to grow as much as fourfold in the next decade, to some 1.3 million people, according to the Lawrence Berkeley National Laboratory.
Educational programs from colleges, universities and other institutions should be at least compliant with ISPQ Standard 01022. In regions where there is a body licensed to perform accreditation, such as the Interstate Renewable Energy Council in North America.
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The addition of energy storage to an existing or new utility-scale PV installation allows system owners and operators the opportunity to capture additional revenues. Traditional storage plus solar applications have involved the coupling of independent storage and PV inverters at an AC bus or the use of multi-input hybrid inverters. An alternative approach - coupling energy storage to PV arrays with a DC-to-DC converter - can help maximize production and profits for existing and new utility-scale installations. DC-Coupled Utility-Scale Solar Plus Storage leads to higher round-trip efficiencies and lower cost of integration with existing PV arrays and at the same time, opens up new revenue streams not possible with traditional AC-coupled storage, including clipping recapture and low voltage harvesting, while being eligible for valuable tax incentives.