Training Courses OpenStream Design offers following Training Courses: PV101: Residential PV Design Overview and NEC Code ComplianceUS$290 Register Now Course Details PV102: Designing Photovoltaic Systems with storage/batteriesUS$350 Register Now Course Details PV202: Photovoltaic Systems simulation/modeling with PVsystUS$750 Register Now Course Details PV305: Advanced Photovoltaic System Design & Operation for PV ProfessionalUS$1350 Register Now Course Details