Mothership Marine
Electrical consumption and specifying a Genset
6
wate
r
wel
rail
1
2
Shore power
3
Battery bank
4
Electric Motor
5Propeller
Solar array
1Generator
4
em
Elec
drye
t
flat s
cree
anke
r
CD -
tric b
l
Hair
TV (L
Rout
er
o
Radi
Print
er
Mod
Lapt
op
Toas
ter
n)
ithou
t ho
b)
Micr
owa
ve
Refr
igera
tor
Coff
ee m
achi
ne
Elec
tric k
ettle
Food
mixe
r
Iron
Ove
n (w
tric t
o
Hob
Elec
Hot
Diagram showing the onboard electrical system
6
2
3
5
Choose the right Genset
Our boats come standard with a 15kW electric propulsion motor, 18kWh battery bank, 1.6kW solar panels and a 4kW diesel
genset. The size of the genset you’ll need depends on how you use your boat. Weekend only users traveling only a few miles
will need a very different genset to a couple that wants to tour the whole county.
Having a genset ensures a plentiful supply of energy and means owners can use a wide range of appliances that bring
comfort and convenience to their time on board. Conveniences like electric cookers, microwaves, washing machines, lots of
lights, computer, TV, heated towel rail, hair dryer, etc.
Cabin Heating
When it gets a little cool or even freezing, cabin heating is provided by a Lockgate-Refleks Marine Diesel Stove and a
Webasto ThermoTop-C together providing over 8kW of heat to the cabin.
Gensets available
Just Sun
In summer it is possible to run a boat just using energy captured from the sun. Whilst the sun always contributes in a positive way, it
can’t be relied on to fully charge your battery bank all year round. Shore charging is possible but it is prudent to install a diesel genset.
Size of genset
We recommend installing one of the following gensets, they are quiet, economical and extremely reliable.
• Fischer Panda AGT 4000 - output 4kVA
• Fischer Panda AGT 8000 - output 8kVA
• Fischer Panda AGT 13000 - output 12.7kV
The larger the output of the genset the less time it takes to charge your battery bank. The genset you choose depends on 3 factors:
• How far you want to travel
• How much you do not want to use it
• Your budget
Assuming that it takes 4kW to propel your boat. The AGT 4000 generates sufficient power to propel your boat without drawing on
the batteries. However, because it only outputs 4kW it can’t charge your battery bank at the same time. All that it produces is being
consumed by the motor. The AGT 8000 will give you the same speed and let you charge the batteries at 4kW an hour and the AGT
13000 nearly 8kW an hour. The diagram on the next page explains in more detail.
Generator time scenarios / motor hours / power consumption.
AGT 4000
AGT 8000
AGT 13000
Motoring
Kilowatt Hours Used
Miscellaneous
1.7 hrs
0.9 hrs
0.5 hrs
Hob/Oven
0 hrs
Washer/Dryer
Motor
5.4 hrs
2.7 hrs
1.7 hrs
3 hrs
8.7 hrs
4.3 hrs
2.7 hrs
6 hrs
10.9 hrs
5.5 hrs
3.4 hrs
8 hrs
Fridge
0
10
20
30
40
50
This diagram assumes that the motor is using 4kW an hour and that the solar panels are not contributing.
Miscellaneous includes:
Electric towel rail, Microwave, Refrigerator, Coffee machine, Kettle, Food mixer, Iron, Toaster, Laptop, Modem, Printer, Radio, Router, TV (LCD - flat screen), Hair dryer, Electric blanket
Miscellaneous includes:
Electric towel rail, Microwave, Refrigerator, Coffee machine, Kettle, Food mixer, Iron, Toaster, Laptop, Modem, Printer, Radio, Router, TV (LCD - flat screen), Hair dryer, Electric blanket
Standard Solar
This diagram shows the 16 solar panels that are fitted as standard to
the roof of the Mothership Narrowboat. These panels are recessed into
the composite moulding and are constructed with a durable film face
and an anodised aluminum substrate. They are very tough and it is
possible to step on them with due care and attention.
OTHERSHI
M
P
No 1
SOLAR ELECTRIC
In conclusion the generator chosen will be dictated by how the boat is
ERSH
OTHhave
to be used and how much time the owner wishes
to
I the generator
No 1 M
running. The figures given are for guidance but it is hoped that they
give a firm idea of the benefits of a hybrid boat not only in regard to
the environment but also in being able to provide enough power to
facilitate a very comfortable life aboard.
P
In full sun the solar panels charge the batteries at a rate of 1.6kW an
hour. The charge received is dependent on time of year and time of
day. On average it is expected the solar panels, every day, will produce
7kW/hrs in the summer and 2kW/hrs in the winter. Weekly that is 49kW/
hrs and 14kW/hrs and means that if the boat was only used at the
weekends it could be done on solar alone.
SOLAR ELECTRIC
HERS
mothershipmarine.com
For sales contact
email: [email protected]
contact no: 01270 525 046
web: www.aqueductbrokerage.co.uk
Mothership Marine LTD reserve the right to change this specification