RENOVABLE ENERGY
HOT WATER DIRECTLY FROM THE SUN

Average insolation in the Central Europe carries out 1300-1900 h /year. In sum quantity taken of solar energy carries out about 1060 kWh (what answers of energy obtained from combustions about 116m³ of natural gas) from one module of collector in the course of year.

OUR SOLAR COLLECTORS THIS:

• hot useful water at home by all year,
• bath in heated up basin from springs to autumn,
• aid household installation central heatings,
• protection of the natural environment across limitation of combustion of traditional fuels,
• saving in expenses on fuels and energy electric.

GIVEN OF TECHNICAL SOLAR COLLECTORS:

OUR OFFER CONTAINS:

1. Solar collectors.
2. The roof handles from aluminium - alloys to collectors.
3. Sheets metal of collector battery assembled as intelligent part of the roof cover.
4. Nipples collector, casings of searchers and other accessories to installation of solar collectors.
5. Regulating - teams with pumps current and with difference drivers.
6. Containers usefulhot waters different capacities from two exchangers, safe from inside before corrosion with two-ply - pottery - enamel.
7. Batteries warm different capacities with exchangers to flow of heating up useful waters.
8. Exchangers of warm spiral from copper pipes, ribbed about surface of exchanges of warm 1-2, 2m².
9. Realization of installation with aerial collectors.

COLLECTOR IS INTENDED TO WORK AS:

• Independent heating individual in systems solar heatings of water to useful aims targets (period from April to October).
• Initial heater in cooperation with conventional heating devices.
• Source warm in wider configurations of heat engineering net, eg with pumps warm.

Whole of circulation of liquid inside of collector takes place in copper lines. Example cooperations of collector with conventional heating devices as initial heater of useful water one introduced on after-mentioned drawing.

DOMESTIC SOLAR SYSTEM WITH A HEAT EXCHANGER:

The system consist of solar collectors (4) connected via insulated pipes to a heat exchanger (7) installed in a tank of heated water (8). The circulation pump (1) causes the heating medium to be circulated. It is switched on and off by a thermostatic control (3), which reacts to the temperature difference measured with sensors (5 and 6). The heated water from the tank is chanelled to conventional heating equipment (9). (2)-cold water feed.

PRICE - LIST

Assemblage 1:

The offer of complet instalation for 3-4 users of the hot water:

1. A solar collector (1 unit).
2. The heat exchanger 200l (1 unit).
3. The screws 3/4 (2 units).
4. The corc 3/4 (1 unit).
5. The corc for the probe of temperature 1/2 (1 unit).
6. The corc for the probe of temperature 3/4 (1 unit).
7. The regulation and protect equipment (regulator, pump, diaphragm vessel, faucets, thermometers, manometer, protect faucet (1 unit).

TOTAL PRICE: 6500zł - in the price are complet of the equipment (Assemblage 1) with price of work.

Assemblage 2:

The offer of complet instalation for 5-6 users of the hot water:

1. A solar collector (1 unit).
2. The heat exchanger 500l (1 unit).
3. The screws 3/4 (2 units).
4. The corc 3/4 (1 unit).
5. The corc for the probe of temperature 1/2 (1 unit).
6. The corc for the probe of temperature 3/4 (1 unit).
7. The regulation and protect equipment (regulator, pump, diaphragm vessel, faucets, thermometers, manometer, protect faucet (1 unit).

TOTAL PRICE: 9400zł - in the price are complet of the equipment (Assemblage 2) with price of work.

ELECTRICITY FROM THE SUN
	The enrgy of the future: noiselles, enviromentally-friendly! unlimited availability! adapted to meet all indyvidual needs! Use of renovate energy resources!
Photovoaltic cells are designed to support the conventional power supply system. Using photovoaltic cell it is possible to transform solar energy into electricity. When sunlight is intense the photovoaltic system modules are able to supply all the electricity needed in an average household. Any excess electricity produced by the modules can be fed to the power grid.

An example of solar battery connected to the electricity system:

A solar generator consisting of 20 modules - each 50W module has power rating of 1000W. This battery requires 9,2m² of roof surface. A frequency converter will be necessary to channel energy to the electricity system. This kind of solar battery facing in a southerly direction and inclined at 35^o will, in an average year, supply the following amounts of electricity (in kWh):

Therefore over a period of a year 1034kW of electricity are obtained. This is the equivalent of about 40% of the average consumption of a three-person household.

WIND ENERGY
	In order to benefit wind energy and convert it into electricity or harness it for operation of appropriate machines (pumps, mills) the user (assuming relatively favourable wind conditions) should be commited, possess the necessary financial resources and, in the case of turbines placed on towers secured to the ground with foundations, obtain permission from the relevant local authorities. Low power turbines, with a capacity of 300-500W, are placed on poles either with or without guys, or are secured to roof ridges. In any case one has to remember to position the structure so that if it falls over it will not fall on residencial buildings. ROTAL offers its clients low power wind motorsand wind turbines from 0,3 to 20kW in the simplest from, for domestic applications, that is for the generation of electricity for heating purposes and for recharging batteries.

We offer wind motors designed to drive all piston and membrane pumps, mills etc. The height of towers assembled from angle sections (2 x 2 x 3/16") is 7 to 14,5m, the diameter of the multibladed windmill wheel is between 1,85 and 5m, and the size of the inside cranks is beetwen 127 x 95 and 381 x 280mm. Towers, windwheels and the mechanisms are supplied in elements. A pump is included.

*Prices do not include import cost and 22% VAT.

WIND TURBINES
	If you would like to enjoy the benefits of bein supplied with electricity supply fron any renovate source for noncommercial purposes, you should remember to match the power generating equipment to the heighest demand of your household at a practicular time of year (we refer to households that either want to, or have to become independent from the public electricity system). If you decide to purchase a wind turbine please remember that you should not select your wind turbine according to the power of installed devices (kW), but to the lenght of time for which they operate in extreme conditions (kWh). No wind turbine will supply a household with enought electricity for lighting on a dark December night if there is no wind. For this reason electricity should be simultaneously stored in batteries, used to heat water boilers and be stored in the walls, celling and floor of the house. This is most essential if you already have a wind turbine and do not wont to lose energy generated on a windy, warm and sunny day. For this reason it is also unwise, uneconomical and inefective to heat a house using electricity for traditional water-based central heating, or to power electric ceonvectors, as the objective is to ensure a comfortable temperature and not needlessly heat air molecules which may escape via windows and doors. The above also implies that off-grid houses cannot rely only on the wind, even for charging batteries to light the house. It will be necessary to use the Sun, an ever-present and reliable source of renovate energy (see photovoaltic cells).