Sparks Electrical News August 2017

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18 ENERGY EFFICIENCY
SCHNEIDER ELECTRIC has upgraded its TeSys D range with the TeSys D Green
range that features lower energy consumption and ac/dc coils, meaning every coil
can be energised with either ac or dc current.
Making it easy for customers to upgrade and gain the improved energy
efficiencies, the range is backward compatible with all current TeSys D accessories
and support products and offers consistent low-energy contactors that handle 9 to
80 A, and cover control voltages from 24 to
500 V ac or dc.
Designed to take up less space in
machines and electrical cabinets, the range
offers a number of advantages. For example,
low control current leads to lower energy
consumption with a reduced coil power of just
0.5W at 24 V dc, making a major contribution
to the energy efficiency of a machine. In
addition, a special contactor product that
handles 40 to 65 A and can connect directly
to PLC control, as the device can be driven by
a common 24 V dc/500 mA static output,
means that a relay interface is no longer
required.
Meeting the SEMI F47 standard, the range
offers higher resistance to voltage surges
and grid disruptions to provider higher
uptime. The contactors also offer reduced
contact bounce as the devices retain the
same high resistance to shock and vibration
as the TeSys D range.
Other advantages include a constant
closing and opening time, regardless of
voltage fluctuation, delivering reliable
repetitive actuation. Also, when maintenance
is required one TeSys D Green can replace
many standard contactors. The range is
available from RS Components.
Enquiries:
SCHNEIDER TeSys D Green
OFFERS REDUCED ENERGY
CONSUMPTION
WACO INDUCTION GEYSER
THE WACO induction geyser is a low capacity outlay
which is easy to install and saves up to 30% electricity. It
takes two and a half hours and uses 7.8 kW of electricity to
heat a conventional 150ℓ geyser from 20 to 65°C. Heat-
ing the same amount of water using the Waco induction
water heater takes approximately two and a half hours,
using 5 kWh of electricity, nearly ²/3 of the cost of a con-
ventional geyser.
Features include:
• Split magnetic induction water heating
• Wall mounted installation
• Voltage: 220 V
• High quality insulation
• 15 year life expectancy
• Power range required: 2000 – 4000 V
• Standard plumbing fitting
Benefits:
The Waco induction geyser will pay for itself within a year. It
offers quick access to hot water, a Class 2 safety rating, elimi-
nating the risk of water damage, and requires a 15 A wall plug.
Enquiries:
SPARKS
ELECTRICAL NEWS AUGUST 2017
SOUTH AFRICA RANKS 10TH FOR RENEWABLE ENERGY
sun2roof SOLAR ENERGY INSTALLATIONS IN GUYANA
The Allianz Climate and Energy Monitor 2017 ranked
South Africa 10 th among G20 countries for renewable
energy investment conditions. It scored high for its
depth of capital markets, even though a high inflation fore-
cast brought down the overall score. The country has steadily
increased its renewables capacity in the past years and has a
relatively high presence of leading renewable energy business.
The Allianz Climate and Energy Monitor 2017 examined the
needs and investment climate for all G20 countries regarding
renewable energy. Germany, UK and France maintain the top
three positions in the 2017 edition. They combine a largely sup-
portive policy environment for renewable energy with a mature
market and adequate general investment environment.
China holds its place in this best-performers club, maintain-
ing fourth position. With soaring renewable energy markets
and a consistent policy push, China installed more solar pho-
to-voltaic than the rest of the G20 combined in 2016. India,
South Africa, Brazil and Indonesia emerge as high-need hot-
spots owing to increasing demand for energy, sheer size and
vulnerability of the existing power system to a changing cli-
mate. “Emerging economies are increasingly taking on a lead-
ership role and are credibly enhancing their renewable energy
financing frameworks”, says Simone Ruiz-Vergote, managing
director at Allianz Climate Solutions. “China, India and South
Africa are keenly interested in improving their attractiveness
for investors in renewable energy, and they clearly managed to
do so in 2016. Their prospects are good if policy support and
market capacities are maintained.”
South Africa has a national strategy to tackle climate
change. However, the country needs to increase its ambition
level and put together a plan to decarbonise the electricity
sector. The current auctioning system available in the coun-
try is insufficient to create a level-playing field for renewables
compared to the fossil-fuel electricity infrastructure.
Following the successful completion of a
on the State House in Georgetown,
Guyana, The meeco Group has been contracted to
equip the roofs of 57 government-owned buildings with its
clean energy solution, sun2roof.
“We are delighted to have been awarded the tender for
the installation of, in total, 740 kWp on diverse roofs of gov-
ernment-owned facilities such as schools, police stations,
administration buildings, health centres and ministries,” says
Thomas Beindorf, chief technical officer of The meeco Group.
“The management and execution of a clean energy project
depends on quality cooperation with local colleagues and
partners. Cooperation with
the government of Guy-
ana and local teams dur-
ing the installation phase
of the sun2roof system for
the State House was highly
professional, so we look
forward to the new projects
ahead of us.”
is one of
meeco’s most successful
clean energy solutions. It
offers complete flexibility
in terms of design require-
ments and customisable
roof-mounted solar energy
modules; a power inverter
with an interface to meeco’s
energy monitoring system
and the option
to connect the solar solu-
tion to the national grid.
This environment-friendly
approach takes Guyana
a further step on the path
towards a greener energy
supply and a decreasing
dependence on polluting
fossil fuels, such as diesel
and gas.
Enquiries: