Economics of Geothermal Heat Pumps
Geothermal heat pumps save money in operating and maintenance costs. While the initial purchase price of a residential GHP system is often higher than that of a comparable gas-fired furnace and central air-conditioning system, it is more efficient, thereby saving money every month. For further savings, GHPs equipped with a device called a "desuperheater" can heat the household water. In the summer cooling period, the heat that is taken from the house is used to heat the water for free. In the winter, water heating costs are reduced by about half.
On average, a geothermal heat pump system costs about €2,000 per ton of capacity, or roughly €6,800 for a 3-ton unit (a typical residential size). ). A system using horizontal ground loops will generally cost less than a system with vertical loops. In comparison, other systems would cost about €4,000 with air conditioning.
Although initially more expensive to install than conventional systems, properly sized and installed GHPs deliver more energy per unit consumed than conventional systems.
And since geothermal heat pumps are generally more efficient, they are less expensive to operate and maintain — typical annual energy savings range from 30% to 60%. Depending on factors such as climate, soil conditions, the system features you choose, and available financing and incentives, you may even recoup your initial investment in two to ten years through lower electricity bills.
ECO FRIENDLY HEATING SYSTEMS -- SOLAR PANELS:
Water Heating Solar Panels
Government Grants now available!
Just think - Reduce those dreaded ESB, OIL and- GAS Bills
OUR AVERAGE FAMILY SYSTEM NOW fully installed from
€3405 including VAT
Then get €406 in Government grant aid
Final cost to you is €2999
What do you want from a water heating solar panel?
- An eco friendly manufactured product
- Most efficient product on the market
- Price rises with more to come, save on your energy bills
- Adds value to your property
- Future proof your home and do your environmental bit
- Easy to install DIY kits available
Welcome to the solar century.
A Solar Panel can cut your energy bills by 70% for 30+ years , which will be a welcome relief as energy pricing goes up and up and up in the coming years. Domestic water heating consumes vast amounts of energy, and with a solar panel you will have plentiful amounts of free hot water .
Electricity Producing Solar Panels
Solar PV (photovoltaic) uses energy from the sun to create electricity to run appliances and lighting. PV requires only daylight - not direct sunlight - to generate electricity.
How it works
Photovoltaic systems use cells to convert solar radiation into electricity. The PV cell consists of one or two layers of a semi conducting material, usually silicon. When light shines on the cell it creates an electric field across the layers, causing electricity to flow.
The greater the intensity of the light, the greater the flow of electricity...
PV systems generate no greenhouse gases, saving approximately 325kg of carbon dioxide emissions per year - adding up to about 8 tonnes over a system's lifetime - for each kilowatt peak (kWp - PV cells are referred to in terms of the amount of energy they generate in full sun light).
PV arrays now come in a variety of shapes and colours, ranging from grey 'solar tiles' that look like roof tiles, to panels and transparent cells that you can use on conservatories and glass to provide shading as well as generating electricity. As well as enabling you to generate free electricity they can provide an interesting alternative to conventional roof tiles!
Solar PV and your home
You can use PV systems for a building with a roof or wall that faces within 90 degrees of south, as long as no other buildings or large trees overshadow it. If the roof surface is in shadow for parts of the day, the output of the system decreases.
Solar panels are not light and the roof must be strong enough to take their weight, especially if the panel is placed on top of existing tiles.
Solar PV installations should always be carried out by a trained and experienced installer.
Cost and maintenance
Prices for PV systems vary, depending on the size of the system to be installed, type of PV cell used and the nature of the actual building on which the PV is mounted. The size of the system is dictated by the amount of electricity required.
For the average domestic system, costs can be around €5,500- €11,500 per kWp installed, with most domestic systems usually between 1.5 and 2 kWp. Solar tiles cost more than conventional panels, and panels that are integrated into a roof are more expensive than those that sit on top.
If you intend to have major roof repairs carried out it may be worth exploring PV tiles as they can offset the cost of roof tiles.
Grid connected systems require very little maintenance, generally limited to ensuring that the panels are kept relatively clean and that shade from trees has not become a problem. The wiring and components of the system should however be checked regularly by a qualified technician.
Stand-alone systems, i.e. those not connected to the grid, need maintenance on other system components, such as batteries.
Fitting will raise your house price by up to 10%+, thus you are investing into your home and your future.
The innovative PV array technology and mounting systems means that PV can be retrofitted on existing roofs or easily incorporated as part of the building envelope at construction stage. The benefits are:
- Your own clean, independent renewable power source
- Can reduce your electricity bills by up to 100%
- Increases the value of your property from 10-15%
- Low maintenance, with a long functional lifetime of 30+ years plus
- Silent in operation
- It is the only renewable energy source that is proven
- No planning barriers
- Contribute to reducing the impact of global warming and climate change
ECO FRIENDLY HEATING SYSTEMS -- WOOD PELLET BOILERS:
Wood pellet boilers are fully automatic just like oil and gas boilers. Pellet boilers use advanced microprocessors to control the amount of fuel and air being supplied to the combustion chamber. This ensures extremely high efficiencies (up to 90%) and ultra-low emissions.
Heating with pellets is almost as convenient as using oil. No supervision of the equipment is required, although the pellet-burner will need cleaning about once a month. At the same time the ash must be removed, although the quantity is small as the pellets burn very efficiently.