We talk to Paul Robusto, photovoltaic business development manager at Intertek, about the rapidly expanding concentrated PV technology, a subject he spoke on the recent Solar Power International Conference in Orlando.

We spoke with Michael Howe of Canadian solar integrator Eclipsall Energy Corporation. He discussed how the U.S. solar market varies from the Canadian market, as well as the importance of using quality raw materials in solar panels. He tells installers what to look for when talking to manufacturers about panel quality.

We spoke with Billy Parish, founder and president of Mosaic. The company has made recent headlines with its innovative approach to financing solar projects by allowing the public to invest in solar via an online marketplace.

Remember vanadium from your high school science class? We spoke with Imergy President Tim Hennessey who told us how his company is using a lower-cost vanadium waste product to create batteries that can last longer and hold more power than many other options out there. Listen to learn more.

Solar Power World editor Kelly Pickerel spoke with Brandon Cheshire, founder and director of production at SunHarvest Solar & Electrical, based in Phoenix, Arizona. The mostly residential solar installer is active in local and state governments to boost the profile of solar energy.

We spoke with Mark Kanjorski of Ampt to discuss why the solar industry is moving toward higher voltages (1500V and more), and various ways of achieving them, including with DC optimizers.

Testing is essential to helping verify functionality and performance of any component, especially inverters as the “brains of a solar system.” We spoke with Ray Hudson and Michael Mills-Price of DNV GL’s inverter testing segment to tell us more about how the organization's testing expands upon that of traditional national testing facilities.

Installations of power optimizers are reported to grow significantly through 2020. We’re here with Mike Rogerson of SolarEdge to give us some insight into these power electrics in 2015.

Yury Reznikov, vice president of product management at SunLink, a solar mounting system provider, discusses trends in the ground mount market, including key product differentiators and supply chain best practices.

Solar Power World editor Kelly Pickerel spoke with Jeff Petrini, energy manager, and Katie Van Dyke, sales and marketing manager, of A-C Solar based in Bakersfield, California. The commercial solar installer has been in the business for over a decade and shares its tips for success in SPW's Contractors Corner.