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

Accreditations

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 ?