Full Text Searchable PDF User Manual
Solo | PV Display
2 | geo helpline: 0845 519 7226
The Solo product is designed to be
installed simply and without the need
for a qualified electrical installer. There
is no need to open fuse boxes or to connect or
disconnect any cabling. It is designed to be used
inside a suitable building or meter cabinet.
Don’t fit rechargeable batteries.
When fitting the LED head, ensure the
meter connection is clear of debris and
is not perished in anyway (cracked or
burned) or wet. If you have any doubts about
its condition, do not install the sensor, contact
your solar panel installer.
For use in dry environments only. Keep the Solo
away from water and other liquids. Disconnect
before cleaning and do not immerse in water or
other liquids. Please contact Green Energy Options
if any components appear damaged or faulty,
details are at the back of this booklet.
To protect the environment, this product
and batteries must be disposed of safely
at the end of their life. Please take to a
recycling centre for safe disposal.
CE approved. For use within the EU.
We’d like to thank you for buying the
Solo which is designed to show what
your PV array is generating. This booklet
explains how to set up and use your Solo
in a simple, clear way. If you have any
problems or questions please call us. The
number is at the bottom of this page, and
we’ll be pleased to help.
The Solo is designed to help you learn
about the electricity you are generating,
and to spot when the best time to use your
energy hungry appliances is!
This will help you to reduce your CO2
output and save money - how?
Well, the Solo gives you lots of visual
feedback on the energy you are generating
and the money and carbon you are saving
in comparison with using electricity from
It shows you what’s happening right
now and how much you are earning.
The next few pages tell you how to install
and get the best out of your Solo. We hope
you’ll enjoy using the Solo and will pass
the word on to your friends.
It is important to observe some simple safety precautions when using this product.
Please read this important information before continuing. Safe operation of the
Solo is impaired if used in a manner not specified by the manufacturer.
www.greenenergyoptions.co.uk | 3
What’s in the box
The display shows your energy generation. It
receives a wireless signal from the transmitter
unit. The display is mains powered and can
be mounted on the stand. The display can
be powered by 4 AA batteries for short term
portable use only.
The transmitter unit will sit next to your
existing generation meter, and sends the
readings to the display. The transmitter is
powered by 3 AA batteries.
This is to power the display. Please do not
use any other supply to power the display.
LED Reader (Velcro)
The LED reader will work with any meter
with a visible LED pulse (you will be able
to see this on the face of your meter).
For more information please see page 9.
The LED reader connects to the face of the
meter (over the LED), you will need to attach
using the Velcro included. The sensor then
measures the amount of energy you are
generating after you have set the pulse
rate. See page 9 for details.
To connect the sensor you just plug it
firmly into the bottom of the transmitter.
4 | geo helpline: 0845 519 7226
Setting-up the Solo for the first time takes only a few minutes
and is described in the next few pages.
Units of measurement:
PV array size
Setting-up the display
Unpack the display and the power supply.
Decide where you want to put the display,
we suggest the main living area (it needs
to be within 30 meters of the transmitter
and generation meter).
Plug the power supply into a mains socket
and insert the cable to the power socket at
the side of the display.
The Solo can be run off batteries for short
periods of time whilst you are setting it up
and finding the best place for it. However
it is designed to run off the mains adapter
provided. Relying on the batteries for too
long will result in the display powering
down, so please ensure you limit the amount
of time the display is run on the batteries.
If the batteries do run down, please remove
the old batteries and replace with new
batteries. Do not leave the old batteries
in the unit.
If for some reason your display turns off
having lost power, the sensor will remain
collecting the total energy generated.
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The display is in three sections, and looks
a bit like a car dashboard.
The top section is your ‘Speedometer’; it
shows you how much electricity is being
generated right now (how ‘fast’ your panels
The middle section is your ‘Milometer’; it
shows you how much electricity you have
generated today (this can be shown as a
monetary value or the number of kilowatt
hours or as carbon saved).
The lower section is your ‘Fuel gauge’; the
outer gauge shows your total generation over
the course of the day and the inner gauge
shows a preset generation target of 50% of
what we expect your PV array to generate.
When you are generating more than 750W
the tick will show so that you know when
you are generating enough power to turn on
your energy hungry appliances (like washing
machines and dishwashers).
This ensures you are making the most of the
electricity you are generating.
Immediately under the display are three black
buttons. You’ll use these when you set up the Solo
and move between the different display modes.
6 | geo helpline: 0845 519 7226
Setting the size of your PV array and feed in tariff
So that the Solo can show you what you are earning by using solar panels you
will also need to enter your feed in tariff rates.
Set the currency: ($, £, kr, €) using the left and right buttons
on the display then press the set button to confirm.
Set tariff: This is in pence. For example, 10.00 is ten pence.
All feed in tariffs should be fixed at 43.3 pence for retrofit
(arrays which have been installed onto existing buildings)
and 37.8 pence for solar panels which have been installed
onto new buildings. Check with your PV installer if you are
The Solo can accept three sizes of PV array so that it can more
accurately display your generation activity on the speedometer. You
can choose from 2kW, 3kW or 4kW (if your array does not exactly
match one of these please choose the closest) and as the size
increases the number of bars that are lit will also increase.
Setting the year, time & date
After powering on the display it should be showing
the main screen. If not press the middle button until it
appears. To start setting up the Solo press and hold the
Set button until the Set Year screen appears.
Press the left and right buttons to change the flashing
numbers until the correct ‘year’ is displayed, then press
the Set button to confirm this and it will move you to the
Use the same technique to set the ‘month and day’. Press the
left and right buttons to change the flashing numbers until
the correct month and day is displayed, then press the set
button to confirm this and it will move you to the next screen.
Then with the same technique again, set the ‘hour and
minutes’ (If you wish to make any changes you can press
and hold the set button and this will allow you to go back
If there is a time
change you will
need to update the
time on your Solo
(for example GMT
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Set the power down time
This switches off the backlight to save power:
Off – The display remains on permanently.
1 or 2 – The display goes to sleep after one or two
minutes, waking up briefly every 15 minutes.
Press the set button to confirm.
Set the sleep period
This allows you to switch the display off overnight.
On disp – The time when you want it to wake up.
Off disp – The time when you want it to go to sleep.
Press the set button to confirm.
Set the pulse
This sets the pulse rate that the LED reader needs to use
to measure the generation levels. A full list of pulse rates
for different meters is included on page 15. If you need
further clarification please just call the help line. You may
also find the pulse rate on the face of your meter. If you
are setting 10,000 pulses/kWh the screen will read mA.
Press the set button to confirm.
If you have already powered up your transmitter, and wish to change the Setup entry
for the pulse rate, you will need to reset the transmitter for it to pick up this setting
change. To do this, simply remove a battery or the mains power for more than 10 seconds, then
re-fit it again.
Now you’ve finished entering the settings
Press the set button one more time and you’ll see the main screen. The numbers and gauges
won’t be working just yet – the sensor still needs to be connected to your meter. Please note: If
you ever go back into settings once the system is operational, we recommend you minimise the
time the unit spends in settings mode as sensor data is ignored during this time.
If you want to reset the readings
If you want to reset the readings, you need to perform a factory reset of both the display
and the transmitter.
On the transmitter hold the pair button and then insert the batteries,
On the display hold the pairing button whilst applying power (DC jack or batteries)
and the device will show ‘memclr’.
Once you have done this you need to pair the two units again (see page 8).
8 | geo helpline: 0845 519 7226
Setting-up the transmitter
and wireless connection
LED Pair button
cover of the
Activate the transmitter
• Remove the battery cover from the
• Remove the protective strip from the
batteries, the LED should flash for one
second. If not, try rolling the batteries in situ.
• Don’t replace the battery cover yet...
between the transmitter
and the display
The transmitter and the monitor display need
to be able to talk to each other via wireless
communication. They should be paired when
you receive them, if not you need to ‘pair’ them.
To check they are paired insert the batteries
into the transmitter and turn on the display.
Within a minute you should see the
communication icon light up on the display
screen. If the communication icon does not
light up follow the steps below:
1. On the display: press the pair button on
the back. You should see a ‘pairing ‘ screen.
2. On the transmitter: remove a battery. Then
while holding down the pair button replace
the battery. Keep the pair button pressed
down until the green LED has gone off.
On the display: Wait for a couple of seconds
and the display will show a ‘pair’ screen
with a tick. Press the set button to go back
to the main screen.
3. Pairing may still not be successful so
simply repeat the process. You may need
to do this more than once. If the ‘X’ pair
screen appears you have not managed
to pair in the time allocated - simply
press the set button and go back to step 1.
4. Once paired, press the set button to return
to the main screen. You should now see the
lightning bolt (communications icon) lit up.
Please do not use
a sharp metal object
such as a knife or
screwdriver to lever
www.greenenergyoptions.co.uk | 9
• Locate the connection point on the face of
your meter (Please note that the position
on the meter may vary depending on
• Initially, without touching it, look
to see if it is in good condition.
ImPORTAnT: If there is any visible damage
or you have any doubts about its condition,
do not install the LED reader. Call your solar
• If you are happy with the condition of the
connection point, fit the LED reader onto the
• This sensor requires Velcro to attach to
the meter. Simply peel off the backing and
attach onto the face of the meter so that the
LED flashing light shows through the centre
circle of the Velcro. Apply the other half to
the LED sensor.
• make sure the LED reader is secure.
• Plug the LED reader cable firmly into the
right-hand socket on the underside of the
transmitter (the right-hand socket as you
look at the front of the transmitter).
• now go back and check the display. If things
are working properly and your solar panels
are generating power you should see a
reading on the Speedometer.
For more information on suitable meters and if
you need to know what pulse rate to set your
display at please see page 15.
Fitting the transmitter
and the LED reader
8 5 0 2 1 0
Please look for a
light on the meter.
(See page 15 for
10 | geo helpline: 0845 519 7226
The Speedometer shows you how much
electricity your array is generating right now.
• Press the left or right buttons to change the
display so it shows how much electricity is
being generated in different units.
• $, kr, £, € /h The amount you are earning
is calculated from the tariff you entered
and shows you how much you are earning
by generating your electricity using solar
• kg/h The amount of CO2 production is
calculated from an average figure for the
mass of CO2 generated by a power station
per unit of electricity. It gives you a feeling
for the amount of CO2 that would be
generated if you were using electricity from
the grid rather than your solar panels.
• kW The amount of electricity being
The PV array size bars let you know what
size of solar panels you have entered:
All three bars = 4 kW array
Bottom two bars = 3 kW array
Bottom bar = 2 kW array
The Milometer shows you how much electricity
you have generated today, in kilowatt hours
, the standard unit of electricity. As with
the Speedometer, cost and CO2 emissions may
also be displayed by pressing the left or right
Press the Set button to see how much you
generated yesterday (L1), over the last 7 days
(L7) and total energy generated (mR) since
the Solo has been installed.
Please note: After initial installation (or a factory
reset) L7 will start showing data after the 7th
midnight boundary. So if you turned on your
Solo at monday lunch time, it would be 00:15
on the following Monday before data would be
added to the L7 feature. You will be able to see
a figure for the money you have earned since
installation (or the factory reset was performed)
as this is an accumulated total.
PV array size
www.greenenergyoptions.co.uk | 11
The Fuel gauges
So that you can see how well your array is
performing each day the Solo has a preset
• The outer gauge shows how much electricity
you have generated over the course of the
day. This will be scaled according to the array
size you selected earlier on in the set-up of
For example if you have selected a 2kW sized
array, the outer dial will show up to 16kWh
of generation. (This is the most this size of
array will typically generate).
A 3kW array will show up to 24kWh and a
4kW array will show you up to 32kWh.
• The inner gauge is the target. It shows a
target of 50% of what we expect your PV
array to generate in a day. This can then be
compared against the outer dial, giving you
a clear indication of how well you PV array is
The Tick icon
The Solo shows the best time for you to turn on
appliances that use higher levels of electricity
• If you are generating enough electricity to
use heavy load appliances (750W and above)
the tick will show. This will help to remind
you to use your generated electricity, making
your home more efficient.
Please note that when you are viewing your
history the tick symbol will not show.
12 | geo helpline: 0845 519 7226
Recording data and uploading to
Please ensure the
lock button on the SD
card is in the unlock
position (down) so
that data can be
www.greenenergyoptions.co.uk | 13
As we mentioned earlier in this guide, your Solo
actually keeps track of everything it displays. It
can store this information on its SD card. This
card will record your energy generation every
15 minutes and you can view the information
using your computer.
myEnergy is a great
way to compare historical information over
time to see what you have generated and how
this compares with the PV manufacturer’s
• To start recording data insert the SD card
into the slot in the top of the Solo display.
Push it in firmly and it will click into place.
(Please note, if the card has been inserted
correctly the display will read ‘Card In.’
It will read ‘Card Out’ once removed).
• When you’re ready to transfer the data,
remove the SD card from the Solo, start a
web browser on your computer and go to
. Login and
password details can be found on the back
of your Solo display.
• The first time you log in to the home screen
area you will need to download our uploader
tool, the user name and password for this is
the same as the myEnergy login on the back
of your Solo.
• Follow the instructions on the page inserting
the SD card into your computer when
prompted (if your computer does not have
an SD card port you will need a card reader).
As and when you want to upload more data,
simply open the SD uploader program and
insert the SD card when prompted.
• The home screen of myEnergy will always
show you when you last uploaded data
and what range of data has been stored.
• When logging in you can also choose
to select “deeming,” if that is part the
arrangement with your utility (this is when
your utility pays you 3.1p per unit, for 50% of
your total generation). The system will then
show you the amount that you are earning
as a result of this.
• Clicking on the “Data Window” button from
the myEnergy home screen will take you
to a screen where you can see the data
uploaded from your Solo.
• The top graph tracks total energy generation.
Clicking on an area of this graph will
show you a day-to-day breakdown of this
information (in the bottom left box). By
clicking on one of the graph bars you can
see information for that specific day (shown
in the bottom right box). Information can
be shown as electricity generated, CO
• Please use the SD card provided. Other
manufacturers versions and card capacities
greater than 2GB may not work.
• Be sure to replace your SD card back into your
Solo immediately after uploading the data.
14 | geo helpline: 0845 519 7226
Frequently asked questions
Q. The transmitter is not ‘paired’
This can happen if things get out of sequence.
To recover, follow the repairing process below:
1. Press the Pair button on the back of the display.
You should see a ‘pairing’ screen.
2. Press and hold the pair button and turn the
transmitter off and then on again (simply
remove a battery and then replace it):
The LED next to the pairing button should
remain on for several seconds.
Wait for a couple of seconds and the display
will show a ‘Pair’ screen with a Tick. Press the
Set button to go back to the main screen.
3. Pairing may still not be successful so simply
repeat the process. You may need to do this
more than once. If the ‘X’ pair screen appears
you have not managed to pair in the time
allocated - simply press the Set button and go
back to step 1.
4. Once paired, press the Set button to return to the
main screen. You should now see the lightning
bolt (communications icon) lit up.
Q. Why won’t my display and transmitter
The Solo is designed to operate in a home
environment, over a range of 30 metres with two
walls in between the transmitter and display. If the
units are further apart than this, then you may need
to bring them closer together to communicate.
Other reasons for the units not communicating are:
• There is radio interference. Try moving the
display to a different location or follow
the repairing process above.
• The batteries in the transmitter are flat - is the
battery icon on the display flashing? If so
change the batteries.
• The transmitter is inside a metal meter cabinet.
Radio communication doesn’t work as well
through metal so you will have to move
the display closer or preferably, mount the
transmitter outside the metal cabinet.
Q. Why is the Communications icon flashing?
The Communications icon will flash if the display
and transmitter are unable to communicate
Q. The Communications icon is on but the
display is still not receiving information
This may happen because the LED reader is not
connected properly, press firmly to the correct
connection point on the face of the meter.
If your display is still not receiving information call
Q. Why is the Battery symbol flashing?
We expect the transmitter batteries to last for
at least a year. Toward the end of their life the
Battery symbol will flash to let you know to
replace them. Please ensure you replace
batteries with AA batteries (LR6).
Do not use rechargeable batteries.
Q. The screen display turns off, what can I do to stop
This may be because the batteries are running low,
remove them and plug in the mains adapter. The
Solo can be run off batteries for short periods of
time but is designed to run off the mains adapter
Q. Can I use the Solo’s generation information to
give to my energy suppliers?
If you provide your electricity supplier with
readings, please use your generation meter
Q. I want to move the unit to another property,
how do I erase data?
If you want to reset the Solo and erase all
generation data and tariffs disconnect the display
from the Power Supply. Press and hold the Pair
button on the back of the display while you re-plug
in the Power Supply until you see the mEmCLR
message, then let go of the button.
It can take up to 2 minutes to clear all of the
memory, after this time the main screen will return.
Q. Can I use more than one display?
This is not possible at the moment.
Q. What do I need to do if I have entered the wrong
date during setup and continued using my Solo?
If you have entered the incorrect date you will have
to erase all data that has been recorded onto the SD
card. You should remove the SD card from the Solo
and then change the date on the Solo display (see
page 6 for more information). Then insert the SD
card into your computer (either using the SD port or
a card reader) and erase all the data that is stored on
the card. You can now insert the SD card back into
Q. What are the values for each segment of
Each segment of the Speedometer will light up
when the generation exceeds the value shown in
the table below.
The segments on the Speedometer have different
values depending on the size of your array. The
table below shows three figures; the first shows
the value for a 2kW array, the second shows 3kW
and the third a 4kW array. You can set the size of
your array using the instructions on page 6.
www.greenenergyoptions.co.uk | 15
Suitable Generation Meters
& Pulse rates
The Solo PV is designed to work with any pulse output generation meter with a pulse rate of between
50 and 10,000 [max]. We have listed some of the meters and the pulse rates you should set on the
Solo below. many meters will have the pulse rate written on them, (1,000 impulses/kWH for example)
if you are still unsure though please call the helpline below.
These are the three most common meters below. = where the LED reader should be placed.
Pulse rate: 1000 pulses/kWh
Pulse rate: 1000 pulses/kWh
Pulse rate: 1000 pulses/kWh
2 kw 3
2 kw 3
29. 1.99 kw
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Green Energy Options Limited (GEO) makes no representations and gives no warranties of any kind in relation to the contents of this
document and all warranties, conditions and other terms implied by statute or common law are, to the fullest extent permitted by
law, hereby excluded.
In particular, GEO assumes no responsibility for any errors or omissions that may appear in this document and makes no commitment
to neither update nor keep current the information contained in this document.
GEO retains the right to make changes to this document (including any specifications contained here in) at any time without notice.
no part of this document may be modified, copied, reproduced, republished, published, transmitted or distributed in any form or by
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Radio Device RF Performance (UK & Europe)
Emissions EmC (UK & Europe)
Safety Requirements (UK & Europe)
3 x AA size 1.5V batteries
0 to 40
-20 to 50
-20 to 50
85% non-condensing 85% non-condensing
If you have any questions please contact us by email at firstname.lastname@example.org
alternatively you can call us on the GEO helpline, 0845 519 7226 or visit:
http://www.greenenergyoptions.co.uk for more information.
The Solo is designed and manufactured by Green Energy Options Ltd. For details of further products,
accessories or enhancements go to http://www.greenenergyoptions.co.uk