Novel inverter technology reduces utility-scale PV system costs

J. Schmalzel, P. Jansson, D. Schmalzel, U. Schwabe, O. Fishman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


Total PV system design and installation costs can be lowered if key architectural elements can be changed. This paper describes a new grid-tie inverter technology that has two major elements. First, the DC outputs of PV modules are aggregated through an element termed a solar power optimizer and transmitter (SPOT), which produces a 2.5kV output. In turn, SPOT outputs are connected to a novel inverter architecture. Termed a regulated current source inverter (RCSI), the advantages of the new inverter include lower switching speeds and corresponding losses, which makes it practical to scale up to the MW levels needed for utility-scale PV generation plants. The potential impact of the new approach is assessed by comparing costs for a nominal 10MW plant using existing inverters based on pulse width modulation schemes and costs based on the novel technology.

Original languageEnglish (US)
Title of host publicationProgram - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Number of pages3
StatePublished - 2011
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: Jun 19 2011Jun 24 2011

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Other37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Country/TerritoryUnited States
CitySeattle, WA

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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