SB 4152 Web

frequency problems are detected on the Grid
or if Power Companies introduce time of use
tariffs which make it expensive to consume in
times of peak demand. Further, Power
Companies may offer Renewable led
electricity tariffs which provide Consumers
with cheaper electricity if they consume
when Renewable generation is prevalent.
Being able to respond to these requirements
will reduce electricity costs for Consumers as
frequency response payments or cheaper
time of use tariffs are made available.
The DSR Electric Combination Radiator has
an element of in built heat storage as a result
of the magmatic tablets at the core of the
radiator. This, therefore, should ensure there
is no compromise to the heating provided for
Consumers when their heating is turned
down or off through the DSR Control System.
This DSR Control System provides further
evidence that electric heating is a developing
technology and becoming an even more
affordable form of heating. As Schools often
have large heat requirements, the benefits a
DSR electric heating system could provide
will be even greater.
Solar PV Secondary Heating
In early 2016 EHC were approached by
several Consumers who installed Solar PV
arrays across a range of properties. These
Consumers were mindful of the reduction in
Feed in Tariff and wanted to increase their
utilisation of the Solar PV generation to
achieve greater cost savings. They asked if
EHC could provide a cost effective solution
which could increase PV self-consumption
and provide ‘free’ heating for their Properties.
Specifically, some wanted to provide
additional ‘free’ heating for Tenants who are
elderly or fuel poor.
To assist these Consumers, EHC designed a
Solution that utilised Solar PV Ready
Radiators working in conjunction with an
Intelligent Controller. This ensured that the
Property is using all of the Solar PV energy
being generated and minimising what
generation is sent back to the Grid. The
system will operate in a manner that the feed
in tariff received for generation is not affected
and can still be received by the appropriate
party.
The Solar PV Ready Radiators have a ceramic
core which benefit from partial storage and
can operate from as low as a small trickle of
current being fed to them up to the full
current required to heat the radiator to its
maximum output. The Intelligent Controller
ensures the Property’s power demand e.g. for
lighting, the kettle, vacuum cleaner, television
etc. is met first by the Solar PV generation
and only the excess PV generation not
otherwise utilised is sent to the Solar PV
Ready Radiators. The Intelligent Controller
can also operate with a Hot Water Cylinder
should the preference be to divert heat to the
Property’s Hot Water Cylinder during the
summer months.
The intention of these Solar PV Ready
Radiators is not to provide a whole heating
system for a property but to provide a
background heat during the day or provide
heat to rooms which are not normally heated
e.g. storage cupboards, small classes, meeting
rooms or offices.
To prove this Solar PV Secondary Heating
system can provide benefits and costs
savings, EHC ran comprehensive trials of the
system over a 12 month period in 27
properties. EHC chose an independent third
party specialist, Delta EE, to monitor and
analyse the Trial results.
The final Trial results proved to be
significantly better than any prior predictions
made by Delta EE. The Trial results achieved
were:
• The Solution increased PV selfconsumption
on average by 42%
• Average estimated Annual Bill Savings of
£42 for properties with Gas Central Heating
and £185 for properties with all Electric
Heating
• Average estimated CO2 Savings of 199kg for
properties with Gas Central Heating and
868kg for properties with all Electric Heating
• Average room temperature increase of 3°C
in rooms fitted
The stand out result, however, has been the
Consumer feedback received. All Consumers
who participated in the Trials found the
Solution a benefit and that it ‘makes sense for
others to use.’ Specifically, some commented
the difference in room temperatures was
noticeable and rooms not previously heated
were now ‘a pleasant temperature.’ Some also
commented that the financial savings ‘will
continue to increase if Energy Tariffs
continue to rise.’
With these great results and positive Tenant
feedback, EHC hope this Solution will be
given credence by the UK Government in the
Standard Assessment Procedure (SAP)
Regulations.
This Solar PV Secondary Heating System
would ensure that Schools and other
Buildings with Solar PV arrays installed
maximise their PV self-consumption. The
Solar PV Ready Radiators would provide
additional heat during the day for hard to
heat rooms and provide cost and CO2
savings.
If you would like to find out more about LOT
20, DSR technology or this innovative Solar
PV Secondary Heating Solution and discuss
the Trial results in detail, please do not
hesitate to contact EHC on 01698 820 533 or
email info@electric-heatingcompany.co.uk.
www.electric-heatingcompany.co.uk
Winter 2018 4152 7