Renewable Technology

Renewable energy is energy that has been collected from renewable resources, such as wind, rain, and sunlight. It can offer many eco-friendly benefits over non-renewable energy as it doesn’t involve the burning of fossil fuels, which lead to large amounts of carbon dioxide being released into the atmosphere.

Solar Thermal Systems

There are many myths to solar thermal systems being designed to heat hot water and some information can over complicate and confuse, but it is really quite simple.

Solar energy is simply harnessing the power of the sun’s rays,( sunlight, daylight) and using this energy to heat hot water in a suitable hot water cylinder.

Solar power is free energy, a clean energy that can lower our carbon footprint and save on energy costs, particularly hot water costs. With growing families or just multiple bathroom properties are demand for hot water is often constant. Solar thermal can save 60% of your hot water costs and higher during the summer months and its free. We have enough sunlight – daylight in the UK to make solar thermal a viable renewable energy and well worth the investment, and with the Government committed to renewable energy there is now a Renewable Heat Incentive that applies to solar thermal working on a feed tariff system where panels will earn payments for units of energy created.

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Benefits of Solar Thermal Systems

  • Low Maintenance Costs
  • Reduces Electricity Bills
  • High Efficiency Panels
  • Lower Your Carbon Footprint
  • System Works All Year Round
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    Renewable FAQs

    Do solar thermal collectors - systems work in winter with no Sunlight or a cloudy day?

    Yes: Solar collectors work on daylight as well as sunlight with Solar systems providing energy/ hot water during cloudy or overcast days, but would require a back up from another energy source such as a gas/oil boiler, immersions or another renewable energy source.

    Would Solar panels work with my existing hot water system?

    To get the best efficiency and make use of the solar gain created form the solar collectors in most cases a dedicated solar or new cylinder is required. But this is an ideal opportunity to overview your hot water system, and look at an unvented hot water system – (see hot water page).

    What is the payback period?

    This is often talked about, and sometimes difficult to equate, given the installation cost, rebates – incentives and efficiency of the system based on the panels orientation and the fuel type that has been replaced oil, gas etc. Typically this period could be from 6 – 15 years. A better way to look at things would be as an investment compared to say putting that money into shares or a bank, considered a riskier move by some, given that solar energy is free and will here for a long, long time.

    What is the life expectancy of a solar collector systems?

    5 year warranty on all our system with a life expectancy of 20 years +.

    What about maintenance?

    Generally our systems require minimal maintenance and when we annually service your heating equipment we can look at the solar system and its efficiency often avoiding any potential issues that may arise.

    How much does a typical solar thermal system cost?

    A fully installed solar thermal system would typically cost £ before any government rebates/incentives.

    This is often talked about, and sometimes difficult to equate, given the installation cost, rebates – incentives and efficiency of the system based on the panels orientation and the fuel type that has been replaced oil, gas etc. Typically this period could be from 6 – 15 years. A better way to look at things would be as an investment compared to say putting that money into shares or a bank, considered a riskier move by some, given that solar energy is free and will here for a long, long time.

    Surab Ltd is a friendly approachable family run business that prides itself on offering our customers the best levels of service, from the enquiry stage to installation and servicing.

    Solar Gain – The Smart Way To Save Energy

    The Rays omitted from the sun contain energy that can be collected via solar collectors or panels.

    There are generally two types of panel, evacuated tubes or flat plate collectors. These collectors heat a water based liquid within the panels/system called glycol, with a pump station that circulates the glycol through a coil within a suitable solar compatible cylinder transferring the heat generated to indirectly heat your hot water.

    The panels must be positioned ideally on a south roof – south east/west facing roof or ground space to get the best percentage of sunlight/daylight and efficiency , and the cylinder must be size correctly to maximise the solar gain allowing for other energy sources either gas/oil or renewable energy.

    A solar Thermal system would generally consist of Solar collectors sized to the roof space, and required demand. A Solar station- controller and pump which is at the core of the system and brains of the system, managing the system day to day. A self contained unit normally installed within the loft area, but can be separately installed in different locations. A hot water collector or cylinder sized to each application, number of panels and occupants and solar gain created by the solar collectors. The cylinder would generally have two coils lower and upper and two or three temperature sensors, mentoring the level of solar gain and bringing into play a backup /boiler heat source if required. The system would also consist of a surge protector, air separator, and expansion vessel to take up expansion of the system fluid.

    Surab Ltd are accredited Worcester installers, and able to offer their customers a one stop service and advice when it comes to Solar systems.

    Unit C Old Rifle Range Farm Risborough Road, Aylesbury, Buckinghamshire, HP17 0XS

    Tel: 01844 274 604

    Open: Monday to Friday 9am - 5:30pm