REI Mar-Apr 2012 - Renewable Energy Installer

Pumping power
Visitors to Ecobuild will have the opportunity to see Wilo’s
range of pumps up front and personal.
This will include the fi rst opportunity to see some products
which the company says will offer new opportunities for
installers and specifi ers to save energy and reduce emissions.
According to Wilo, it offers the widest range of pumps and
pumping systems from small circulating pumps for domestic
central heating and air conditioning, up to large commercial
pumps for heating, air conditioning, pressure boosting, sewage
and grey water pumping. Drop by the Wilo stand to meet the
Wilo team, discuss your pumping requirements and to get a
feel for the range and to request information.
N1640
Pumping iron: Wilo say they offer the
widest range of high effi ciency pumps
including the Stratos Giga
Micro management
Enecsys will have a major presence at Ecobuild this year and has
chosen it as the venue to unveil a new version of its monitoring
system. The new release has some exciting new features, says the
company, designed to streamline the solar PV installation process,
especially for large, complex installations across multiple locations.
Enecsys will be showcasing its cost-saving 480W Duo micro
inverter, the SMI-D480W-60, a product that brings micro inverters and
their benefi ts into the same price range as string inverters.
The Enecsys team will be on hand to discuss the technology and
benefi ts of micro inverters with Solarcentury each day at the Solar Hub.
N3729
Knowledge: Ecobuild preview
Take the leading edge
Conventional wisdom dictates that PV modules cannot be installed in one
string across two or more differently-sloped roofs or roof facets. However, a
growing number of UK PV installations are turning this wisdom on its head.
Engensa, for example, recently installed a system consisting of one SolarEdge
inverter connected to one string of 18 modules. What differentiates this system
is that the modules are spread across two differently sloped rooftops (25˚ and
40˚), on two different buildings.
In this installation, Engensa made use of SolarEdge power optimisers.
Attached to each module, power optimisers track modules’ individual
maximum power point, ensuring that each module always performs at its
optimal level, regardless of existing power mismatch or orientation mismatch.
In addition to the added energy they produce, SolarEdge power optimisers also
allow installers to utilize more available roof space, save time on system design
and reduce the system’s overall cost. Return on investment remains stable,
even with lower Feed-in Tariffs.
N4139
Top it off: An installation using SolarEdge power optimizers
Show time: The Enecsys 480W Duo micro inverter
which will be showcased at this year’s Ecobuild
www.renewableenergyinstaller.co.uk | 63