Mar 23, 2013
25KW @ The Westin Hotel, Hyderabad
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25KW @ The Westin Hotel, Hyderabad
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Mounting Structures : Made to Suit
Module mounting structures for Solar PV systems are designed to maximize the generation with its optimal tilt while also ensuring that they are capable of withstanding prevalent weather conditions. Other than these, U-Solar offers customized mounting structures for its installation with a complete study on load bearing capacity of the building while also considering the aesthetics and functional aspects of access to roof area.
Example : In facilities where the flat roof area is covered with chillers and other HVAC related equipment, our structural offerings can allow for the mounting structures to be raised in order to facilitate the access to the rooftop space while also being able to use the area for PV installation.
Find pictorial representations of these mounting structures from our installations below!
Home >> Products >> Grid-tied Solar PV >> Net Metering
Net metering allows your rooftop solar photovoltaic system to export excess power generated to the grid. The excess power exported can further add to the financial benefit depending on your state policy.
Get in touch with us for more details on net metering and also find out if your facility is eligible for net metering
Home >> Products >> Grid-tied Solar PV >> Solar Power Purchase
Given the rising cost of grid power and the use of Diesel Generators, users are increasingly looking for options to bring down the energy bill in economical ways. Recent technological advances and cost reductions coupled with support from the government have made solar power more affordable. U-Solar offers a non- CapEx financial model for large enterprises which will help them utilise their rooftop space while having to pay only for the power consumed. Just as you would pay for power consumed from your state Electricity Board.
Benefits of the Non- CapEx model include:
No upfront capital investment
No operational or maintenance cost
Pay only for per unit of electricity consumed!
4KW @ Vishwannath Associates, Bangalore
4 KW Solar PV Sytem installed at the facility of Vishwannath Associates, Vasanth nagar, Bangalore.
Source: Times of India
Battery-based Solar PV
Home >> Products >> Battery-based Solar PV
Battery based systems store the solar energy generated during the day, in batteries, for later usage. An intelligent inverter blends solar power generated with the grid power to supply the loads. Solar power is always preferred over grid power thereby reducing the overall grid usage. In the event of a power failure, solar power (via the battery bank) takes over completely.
Such systems can essentially be either a simple backup system for power cuts or a completely off the grid system where all your energy needs are met by solar power.
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FAQs
What is the efficiency of crystalline solar modules used in the rooftop Solar Photo Voltaic system?
Crystalline solar modules/panels are the most commonly used solar modules for rooftop applications. Module efficiencies vary from 13-17% with the most commercially viable ones being in the 14- 15% range.
What would be an appropriate system size for my facility/home?
The sizing of the system depends on the following
Connected Load and energy required from Solar
Rooftop space available
Budget
Where does one need to place the SPV system?
The panels are best suited to face the south direction for maximizing generation and in a shadow free area such as the rooftop of any building.
What will be the approximate space requirement for a SPV system?
In general, a 1 kWp system will require approximately 120 Sq ft or 12 Sq m of shadow free space.
What maintenance is required for the Solar Photo Voltaic system?
A Solar Photo Voltaic system in a grid tie configuration requires nil or almost no maintenance as the system has no moving parts. Occasional cleaning of the panel with a low pressure water jet is advised to make sure generation is not affected.
Battery based systems require periodic maintenance of the batteries to ensure longevity. Batteries should be regularly and carefully maintained. A visual inspection should be done to assess the general state of the batteries, check for any leaks, cracks or corrosion at the terminals or connectors. Corrosion at the battery terminals is seen as a white coating around the terminals. Cleaning should be done once a month.
How is a Solar Photo Voltaic(SPV) system installed on the roof?
The modules of the PV system are mounted on structures and placed on the roof of buildings. These can be done with very minimal or no grouting work and limits damage to the roof top.
How much electricity will my Solar PV system produce?
The electricity generation of the PV system installed on your roof varies depending on geography, climate conditions and type of system installed.
A grid connected system is usually efficient when compared to a battery based system. A grid connected system can generate approximately 4-5 units every day, whereas a battery based system will generate 2-3.5 units every day.
What are the rebates provided by the government for installing rooftop solar?
Homeowners have an opportunity to avail ~30% capital subsidy for your solar PV installation for up to 1kW whereas commercial or profit making enterprises can avail of a 30% capital subsidy up to a maximum system size of 100 kw.
Commercial establishments can also avail accelerated depreciation, under which 80% of the system cost maybe written down against profits in the 1st year itself, leading to a saving in tax outflow for profitable enterprises.
Can a solar rooftop system be installed on any kind of roof?
The Solar PV system can be installed on any kind of roof, except they may require special mounting structures. Some types of roofs are simpler to work with than others. Flat roofs facing south direction are the most appropriate and easiest to work with.
How much does a rooftop Photovoltaic system cost?
There is no single or simple answer; however solar subsidies and other incentives can reduce the cost of the PV system. Costing of the system primarily varies depending on whether it is a grid connected system or battery based system. The quality of components used also has a strong bearing on the total system cost.
A grid tie system (without batteries) can give you a payback within 4 years or less.
What are the different kinds/ types of technology/ modules available in the market now?
Crystalline and thin-film are two of the most commonly used technologies of manufacturing solar cells/modules.
In Crystalline Silicon technology, thin wafers are cut from Silicon (Si) block, from which cells are manufactured. The modules are then made by interconnecting a number of cells in various combinations.
In thin film technology solar cells are made by depositing one or more thin layers (and hence called thin film) of amorphous Silicon on a polymer substrate.