TriStar MPPT & SureSine Yemen System

Yemen: Remote Home Off-Grid PV Power System for a Multi-Dwelling
The Challenge:
• To provide remote & autonomous power to multi-dwelling homes in Yemen.
• Subject to sandstorms & dust storms, Yemen’s climate is arid and hot, prone to
extremely high humidity (ranging from 35% to 64%) and high temperatures (ranging
from 14°C to 22°C).
The Solution:
• A 100% Stand-alone Photovoltaic Installation using two Morningstar TriStar MPPT™
45A Charge Controllers & six SureSine™ Pure Sine Wave Inverters, coupled with
four12V 230A batteries and two strings of three 200W PV arrays.
• The TriStar MPPT Controllers, with Morningstar’s patented TrakStar™ tracking
algorithm, provide maximum energy harvest for this remote installation site—under
all operating conditions. The Industry’s Highest Peak Power Efficiency Rating: 99%.
– “The TriStar MPPT Controllers will provide the ‘right high output and energy
harvest, so the system can be used with less solar panels.”
• The TriStar MPPT Controllers & SureSine Inverters are environmentally optimized
and offer extensive weather protections. Rated for an ambient operating
temperature range of -40°C to +45°C, they are the perfect choice for extreme
weather installations.
– “Yemen has a lot of dust problems, so using Morningstar’s ‘sealed’ SureSine
inverters make these inverters the perfect choice for reliability.”
• The TriStar MPPT’s & SureSine’s robust thermal design (with passive heatsink
convection cooling) dissipates heat quickly –reducing the operating temperature of
the controller as well as protecting the devices’ sensitive electronic components from
dust, debris and sand particles—enabling maximum reliability and a long operating
life.
– And their low self-consumption means more autonomous power to power the
base-station’s primary functions—household lighting, appliances &
communication systems.
Photos Courtesy of Energy Holland.
“We chose Morningstar’s products
because of their high reliability &
operating life. Due to the political
uncertainty of this region, doing any
sort of maintenance service on these
installations (post install) is not a
realistic possibility.
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