CAPACITY & EXPERTISE TO GUARANTEE YOUR PROJECT
Supporting clients to achieve maximum returns of their investment
SAVITA SOLAR brings global experience to a developing UK market. We pride ourselves on our customer focus services. We use only the HIGHEST PERFORMING products with proven RELIABILITY. These factors ensure you benefit with a high return on your investment.
Savita solar can offer you the installation of a photovoltaic solar system that will generate electricity and offer you both financial and environmental benefits.
There has never been a better time to incorporate a renewable energy system into your home. With rising electricity costs and the feed in tariff the financial rewards are significant.
Savita only installs products that are carefully selected to provide reliability to ensure the security of your investment and evidence based leading performance that will maximise your return on investment.
Residential case study
This case study provides an example of a residential 4kwp (16 panels), south facing roof with a 30˚ pitch, with no over shading using the Governments recommended Standard Assessment Procedure.
Standard Assessment Procedure (SAP)
For SAP calculations, the energy produced per year depends on the installed peak power (kWp) of the PV module (the peak power corresponds to the rate of electricity generation in bright sunlight, formally defined as the output of the module under radiation of 1 kW/m² at 25°C). PV modules are available in a range of types and some produce more electricity per square metre than others (the range for currently available types is from about 30 to 125 watts peak per m²), and the peak power depends on the type of module as well as its effective area. In the UK climate, an installation with 1 kWp typically produces about 800 kWh of electricity per year (at favourable orientation and not overshaded). At times of high solar radiation the PV array may generate more electricity than the instantaneous electricity demand within the dwelling. Arrangements must be made for the surplus electricity to be exported to the grid via a dual or two-way electricity meter.
The procedure for PV is as follows.
1) Establish the installed peak power of the PV unit (kWp).
2) The electricity produced by the PV module in kWh/year is:
0.8 x kWp x S x ZPV
Where, KWp = size of installation, S = an estimate of the annual solar radiation depending on orientation and pitch of the array and ZPV = the overshading factor
For a 4 KWP system, south facing on a 30˚ pitched roof with no overshading the calculation is as follows:
0.8 x 4.00 (KWp) x 1073 (s) x 1(ZPV) = 3433.6 Kwh/year
The performance of solar PV systems is impossible to predict with certainty due to the variability in the amount of solar radiation (sunlight) from location to location and from year to year. This estimate is based upon the Government’s standard assessment procedure for energy rating of buildings (SAP) and is given as guidance only. It should not be considered as a guarantee of performance.
Calculating Income
Based on SAP (2009) calculations this system will generate a FIT income of 3433.6 x 43.3p = £1,486.75
Exported electricity to the grid will be estimated as 3433.6 divided by 2 = x 3.1p = £53.22
Calculated Savings
The recommended assumption is that you use 50% of this amount of electricity that you have generated. We will also assume that you are paying 13 pence per KWHr.
Then 50% of 3301KWh/year = £1716.8
Saving 13p per KWh = £223.18
Total Financial Benefit
Income +Savings = £1,486.75 + £53.22 + £223.18 = £1,763.15
The total financial benefit will of course increase if you use more than 50% of generated electricity and if the cost of electricity rises above the 13p per KWh assumed for the calculation.
If the cost of the system was £11,499 then the estimated payback time would be just over 6.5 years. Therefore providing profit to the home owner for the remaining 18.5yrs of the feed in tariff.
The Process: from planning to handover
Feasibility study
This stage is carried out remotely from our office and at no cost or commitment from the client. Generally this stage can be carried out utilising information provided by you over the telephone. Of course, if you prefer a face to face discussion with one of our experienced team members then we will facilitate this a time that suits you.
This stage will consider a number of factors such as:
- Proposed siting of the system
- Orientation of the building
- The presence of any shadowing
- Requirement for planning permission
- Performance calculation and system pricing
Completion of this stage will provide you, the client, with realistic expectations of the proposed system.
Site Survey
The site survey will provide a refined assessment of the proposed installation site. Whether roof or ground mounted the surveyor will confirm accurate dimensions of the foot print or roof space, pitch of the roof, shading, requirement for structural engineering input and identify a location for the inverter.
We will submit an application for to the Distribution Network Operators (DNO) who are responsible for the electricity network. They will need to approve the connection of your system to the network.
Once the system is commissioned we will complete the application form to your energy provider to register for the feed in tariff.
Most residential PV installations will not require planning permission, but planning is required in special circumstances such as listed buildings . We will provide guidance and advice on this issue.
Installation
Savita Solar Ltd is accredited by the Microgeneration Certification Scheme and are Proinso approved installers. The installation will be carried out by fully trained experienced electricians.
Savita prides itself on providing a client focused service, aiming to minimise the impact of the installations on your normal daily activities. All Savita staff are aware of their responsibilities in complying with health and safety legislation.
Weather permitting, most residential installations will be completed and commissioned within two working days.
Monitoring
A generation meter is fitted to all our installations as a standard. Savita also offer a range of other monitoring equipment that provides data on your systems performance.
Maintenance
Solar PV systems require very little maintenance. While on site our engineers will provide you will so valuable advice and talk you through the monitoring and operation of the system. You will be left with a handover pack that contains full operation manuals and advice, warrantees and our contact number for bespoke advice and support.
Testimonial: Mr Markwell –Pontypridd
Re Savita Solar
“Having decided to install solar panels to generate some of my own electricity, I did some initial research and then looked for an installer to carry out the work.
One of the Savita Solar team came to my home and went through all the details of the work that would be carried out and what I could expect the installation to produce over a period of time. They would do all the paperwork that would be required to register with my existing power supplier. They have recently carried out the fitting of the panels, I am pleased to say that I am pleasantly surprised with way the work was carried out with a minimum amount of upheaval, the panels themselves are performing well even though we have not had the best weather since they have been fitted. I am now looking forward to reduced electricity bills in the future.”