bni 10 minute presentation march 2012
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John James of Green Solar Installation10 Minute Presentation
Doncaster Diamonds BNI Chapter A team in which you can be proud to be a
player
The home of Integrated Energy
Solutions
Our Services Solar Photovoltaic (PV) Installation of PV systems to
convert sunlight into electricity
This electricity can be used on site or exported back to the grid system
Solar Thermal Installation of Solar
collectors to convert the radiant heat from the sun to hot water for Space and Water heating
Heat Pumps Heat pumps are used to
convert latent heat stored in the ground, water or air to high temperature water for space and water heating
Our Services Energy Efficient
Lighting Installation Lighting schemes
which are designed to reduce running costs, reduce maintenance costs and reduce heat gain in buildings
Improved energy control
Installation of control systems to provide more effective use of the energy provision
Heat Recovery
Ventilation Changing the air in buildings is
a major heat loss factor By installing systems which
preheat the replacement air using the exhaust is a great way of making savings.
The boring bits you can ignore
PV Panels PV Cells convert sunlight into
electricity The do this by absorbing the photons in sunlight which causes electrons to flow in the semiconductor which produces current flow.
PV Panels are made up of a number of these cells joined together like the cells of a battery.
They have normally between 60 and 72 cells and produce around 36Vdc.
The boring bits you can ignore
Solar Thermal Solar Thermal Systems
collect the radiant heat in sunlight and transfer this energy to the glycol mixture used in the primary transfer circuit and then on to the Hot water.
The main plus of Solar Thermal is that once installed it produces hot water for no more than the cost of running a small circulation pump (<£50 p.a.)
The boring bits you can ignore
Heat Pumps Heat pumps extract
latent heat stored within the air, the ground and natural bodies of water and convert the relatively small changes in temperature to useful heat for Space and Water heating
They use the standard compression and evaporation cycle found in our fridges and freezers
The important bits Solar PV A 4kWp PV system will
generate around 3300kWh of electricity in one year
The government will pay you 21p per kWh for 25 years
You will use around 50% of what you generate saving 1650kWh @ 12p
Your energy provider will pay you 3p for each kWh
(or 5p if you go with UW)
Typical Solar PV Output
PV Revenue Calculation
The important bits Solar Thermal A 2.5m2 (two panel) Solar
Thermal Array will generate around 55% of the Hot Water requirement for a normal three bed semi (2 adults 2 kids)
It has almost zero running cost and minimal maintenance requirement
Other than a dual coil cylinder or thermal store it requires no major changes to the existing system
How Effective are Solar Panels?
0
20
40
60
80
100%
DH
W E
ner
gy
fro
m S
ola
r P
anel
Jan
Feb
Mar
ch
Ap
ril
May
Jun
e
July
Au
g
Sep
t
Oct
No
v
Dec
Average over 12 months = 55%
Source: NLS
The important bits Heat pumps Heat pumps are highly
efficient with efficiencies of up to 400%
They can produce water for both Space and Water Heating
They can be retrofitted to existing systems with only minor changes to existing
They are suitable for both domestic and commercial applications
Integration Integration Integration
Referrals
Commercial and Residential Property Owners who are looking to reduce fuel costs
Financial Planners who are looking to recommend investment opportunities to their clients
Facilities managers who are tasked with infrastructure development and energy savings
Individuals or companies who are interested in the benefits of renewable technologies
Any Questions ?
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