Answers to your Questions
Solar PV (Photo-voltaic) cells produce DC (Direct Current) on incident of photons in light. This DC electricity is converted into AC electricity using inverter. This converted electricity is consumed, stored or exported.
As name suggest the system is grid tied, the inverter will shutdown when grid fails. This feature is to protect EB personnel who work on grid lines. The advantage of grid tied is that it reduces your electricity consumption by tallying the produced units through a bi-directional meter (net-meter). Grid-tied solar power generation system reduces the backup cost.However in power critical areas Off-Grid system can be opted with battery backup system, which works similar to UPS.
Yes PV works on photons from light, which can be scattered light and direct incident light, when there is cloud the direct incident light may not be helpful but the scattered light will be still providing photons to generate electricity
When you install equal or over to your capacity, you will not be charged for any consumption; monthly fixed charges will be applicable. In case of partial capacity , there will be consumed units payable to EB, however the power generated by the system will be tallied to your EB bill
It depends on the sun's insolation on the area. The average units generated in indian region will be on average 4 to 4.5 Units (kwh) per day per KW
The solar panels are very durable, they come with tempered glass. The panels will require only cleaning, that too it will be washed through rains most of the time. The panels come with 25 years warrantee, Such is the durability of solar panels.
It is according to consumption of units (given there is sufficient roof space). if there is variation in monthly consumption, optimum value should be determined. There is no necessity that you should go for solar for entire capacity, you could go for partial capacity to reduce your EB bills. Call us for site analysis and estimate for solar capacity required.
90 sq.ft. of shadow free are per KW, however 10% of the space can be reduced using higher efficiency panels in case of space constraint.
Almost any type of roof can be utilized to install solar panels. panels will be tilted to south with angle equal to latitude of the location. if roof is tilted to any direction, modules can be lifted to south. We install panels on Metal, RCC and Slanting RCC roofs.