Railroad Primer

Photovoltaic Railroad Power Installations
… Morningstar’s Controllers Are Delivering Solar Success
ALL.DAT.RR.PRIMER.09/13.EN | Page 7 of 7
Sources:
1. WSJ.com - online.wsj.com/ad/article/sustainability-innovation
2. March 2013, Wall Street Journal. Betsy Morris, Reporter
3. U.S. Department of Transportation, March 2013
4. WSJ.com - online.wsj.com/ad/article/sustainability-resurgence
5. logisticsviewpoints.com/2013/04/01/the-resurgence-of-rail
Railroad installation pictures courtesy of Ameresco Solar and RedHawk Energy Systems, LLC / Arthur N. Ulrich Company.
Morningstar Corporation is a registered trademark and the Morningstar Name, the Morningstar Logo, as well as the TriStar MPPT, TriStar, SunSaver MPPT, ProStar, and TrakStar names are all
the trademarks of Morningstar Corporation. MODBUS and MODBUS TCP/IP are trademarks of Modbus IDA. © 2013 Morningstar Corporation. All rights reserved.
Higher State of Charge
• Morningstar’s TriStar MPPT controllers keep the batteries at a higher State of Charge (SoC), given the
same PV array compared to an identical system using a competitor's controller. A higher average SoC
means better battery health and longer battery bank life. It also means better and longer system
autonomy.
Highest Efficiency and Reliability
• Morningstar’s TriStar MPPT controllers deliver better production at higher ambient temperatures for all
operating conditions. Delivering the industry’s highest reliability and operating life, the TriStar MPPT
controllers feature a robust thermal and mechanical design. Their electronic circuitry is engineered to
optimize efficiency, performance quality and reliability. They are also the industry’s lowest in self-
consumption, using a mere 1.7W of power.