Carter's lead the way with a New Green Eco Friendly,
Solar powered Welfare Unit!
A mobile version is also available, contact us to find out
more.
Produces a carbon footprint less than
a child sleeping.
Virtually free energy.
Not sunshine dependant, even charges
throughout winter.
Totally silent running.
No vibration.
Minimal running costs.
Fully serviced by Carter Cabin Hire
Limited.
You can save a lot of money!
The Eco-Welfare unit is powered by the 2No. 250Ahr
12volt batteries, which are primarily charged by the solar panels. This is
backed up by the methanol fuel cell which produces 1600w of power if the
voltage in the batteries drops to 24 volts or below. The fuel cell will only
cut in at this point and therefore in normal everyday use will not be
running. This means virtually free energy most of the time. Even on a
cloudy day it will work perfectly!
In the event of there being no methanol and no sunlight / insufficient sun
light, the unit will run for approximately 8 – 10 hours a day for 5 days on
the stored energy in the batteries. After this time the unit can be charged
by means of a 240 volt supply. This will take 8 hours and will return the
batteries to full working order.
As a cost comparison, the traditional generator run
welfare unit with the same facilities in will cost £340 per week for
unlimited hours. If this unit were to run for 168hours in a week (as lots
do), then it will require 504 litres of fuel (this is based on manufacturers
recommendations that the 270litre fuel tank will run for 90 hours). Based on
today’s red diesel prices (6th June 2008) £0.62 per litre, this will cost
£312.48 per week to run.
The Webasto heating system in the Eco-Welfare unit is the only component
that requires diesel to run. Depending on output required, this will use
0.15 litres / hour @ 1.5kw and 0.5 litres / hour @ 5.5kw. If we average this
to 0.325 litres / hour then this use 7.8 litres in a 24 hour period and
therefore will cost £4.84 to run per day.
The environmental benefits of a WISPA-PAC are
exceptional in comparison to a 12kVa generator (typical size used to power a
large static cabin). The graphical data below shows the difference between a
conventional unit and our new technology.
The fuel cell has been tested in accordance with ECE regulation No. 10 for
electro-magnetic compatibility. Approval number: E24 10R-020234. These units
have also undergone voluntary testing by TUV SUD for conformity with the
basic requirements of IEC 62282-5 and have been awarded the seal of approval
for product safety.
The diesel heating system is E1 rated, which is the lowest rating for a
heating system in Europe.
The methanol cartridge carries the TUEV safety seal and is subject to the
most stringent safety standards. The containers consist of highly
impact-resistant plastic. Containers are subject to numerous drop and shock
tests and have continuously demonstrated a high level of security in these
tests. The cartridges are also equipped with a safety valve to prevent
leakage.
The solar panels comply with IEC 61646 requirements as well as safety class
II up to 520 VDC (US 32 & US 64).
The batteries used in the Wispa-Pac are 95% recyclable in line with the
Environment Agency Directives. They hold an EC declaration of conformity
including the following EN 50081.
In the worst weather conditions and again in a 24 hour period, the unit will
consume approximately 3 litres of methanol. At a cost of £100 for 28 litres,
this means that the running cost will be £10.71 per day. These cartridges
can be supplied and fitted by our tanker operatives safely and easily. The
empty waste containers will be removed from site and disposed of in the
correct manner. These can be recycled if empty and if there is a residual
amount left in then we can dispose of them in accordance with the
Environment Agencies guidelines as we are a registered waste producer.
Methanol is produced by reacting hydrogen with carbon monoxide or carbon
dioxide which is a relatively easy process and it is therefore seen as a
reliable form of fuel. For more information on methanol please look at
www.methanex.com
The overall price comparison of the two units running for 168 hours is:
Traditional Welfare Unit - £652.48
Eco-Welfare Unit - £458.85
All of the above prices are subject to vat @ 17.5% and assume worst running
conditions for the purpose of this comparison.
The unit itself is manufactured from steel with Rockwool insulation and
timber stud work.
