rooftop solar – andhra pradesh

8/19/2019 Rooftop Solar – Andhra Pradesh

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Rooftop Solar – Andhra Pradesh

Wish to have a rooftop solar power plant in or around Andhra Pradesh?

Use this State-specific guide from Kleancell Technologies to get an overview of solar power potential for Andhra Pradesh and things to watch out for whileinstalling a rooftop solar power plant in this region!

Highlights

• Average annual radiation in Andhra Pradesh is "!# $Wh%m&%da' with a(out

&)" sunn' da's!

• Usa(le A* power generated (' solar plants in A!P is + $Wh%$W%da' or

more on average over a 'ear!

• A!P industrial and commercial energ' consumers pa' grid tariff of Rs! ,! -

.!" or more! At Rs! +-,%$Wh or less solar ma' (e cheaper than grid power for some consumers and cheaper than diesel power of Rs! /.%$Wh for allconsumers

Overview

Andhra Pradesh is situated a(out /01 2orth of the 34uator and has ana(undance of sunlight! *om(ined with unrelia(le utilit' power and rising cost of diesel power it is no surprise that the cit' is seeing solar panels on an increasingnum(er of rooftops! 5ndustrial and commercial units here can (enefit greatl' fromthe advantages of solar power (ut should also $eep in mind several constraintswhen designing the solar s'stem! We will (e discussing (oth (elow!

Solar Energy Generation in A.P

Average annual radiation in A!P is a(out "!# $Wh%m&%da' with a(out &)" sunn'da's in a 'ear! This ta(le provides the monthl' values!

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Radiation Data for Andhra Pradesh

MonthRadiation Incident On AnEquator-Pointed TiltedSurace !k"h#m$#da%&

'um(er o non-sunshine da%s

)an *.+$ ,.*

e( /.01 ,.//

Mar /.* 1.2$

A3ril /.,/ 0.2,

Ma% *.22 +

)une ,./,

)ul% ,.1/ /.*0

Agu 0.22 ,.2$

Se3 ,.0/ *./

Oct ,. +.$,

'o4 *.52 /.$2

6ec *.,, /.,/

AnnualA4erage *.0 /+.,2

Source7 'ASA Atmos3heric Science 6ata 8enter

This radiation is converted into 6* power (' the solar panels and is thenconverted into A* (' the inverter! Some of the energ' is lost in this process!T'picall' usa(le A* generation of + $Wh per da' per $W of solar plant capacit' isthe average for A!P over the course of a 'ear i!e! a / $W rooftop solar plantwill deliver a(out + units of electricit' per da' on average!

Solar Power Advantages for Andhra Pradesh

Energy security – Rooftop solar plants can deliver power during load-sheddingensuring that critical loads are alwa's running in the commercial%industrial facilit'2ot all solar plant configurations can deliver power during load-shedding!

Costeffective – Rooftop solar power has a levelised cost of Rs! +!" -"%$Wh 7or less8 considera(l' lower than diesel power at Rs! /.%$Wh 7or more8! Additionall'

'our energ' cost is now fi9ed for the ne9t &" 'ears unli$e diesel power which$eeps increasing :rid power tariff is a(out Rs! ,!" - 0!+ for 5ndustrial and

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*ommercial consumers in A!P! 5f penalties are imposed for e9cess consumptionthe effective tariff is even higher! Rooftop solar power ma' (e cheaper than evengrid power (ut this varies on a case-to-case (asis!

Relia!le – A rooftop solar power plant has no moving parts ensuring relia(lepower over &" 'ears

"ini#al #aintenance – A solar plant re4uires ver' little maintenance from theenerg' consumer *leaning the solar panels once in ever' months isrecommended to ensure that sunlight is not (loc$ed from reaching the solar cells!

$le%i!le configurations – Solar panels can (e installed on different $inds of roofs including par$ing lot roofs as long as the structure%mounting points can

(ear the weight of the panels! The' are also highl' scala(le with rooftop plantsranging in capacit' from less than / $W to more than / ;W!

Constraints for Solar Power in Andhra Pradesh.

Roofto& s&ace – The capacit' of the solar plant that can (e installed ma' (econstrained (' lac$ of sufficient shadow-free rooftop space! Roof re4uirementsare discussed in detail here< a rule of thum( is that 'ou will need a(out / Sft of shade-free roof area for / $W of solar panels! 5nsufficient roof area will mean thatthe capacit' of the solar plant on 'our roof ma' (e sufficient to meet onl' part of

'our electrical load!• When estimating the availa(le roof area an' alternate uses of the roof

should (e considered! 3levated mounting structures ma' (e used if thealternate use of the roof is to continue!

'nfir# &ower – Solar power is dependent on the sun shining and output variesdepending on meteorological conditions e!g! passing clouds can temporaril'reduce the solar plant=s output< monsoon rainfall can also reduce the solar plant=soutput! Therefore solar power for critical e4uipment should (e used incon>unction with another source of power!

Daylight &ower – Solar power is onl' availa(le when the sun shines! Thereforenight time applications will re4uire other sources of power or need to plan for (igger grid connected solar plant with 2et ;etering!

'nverter weight – The 6* power output from the solar panels needs to (econverted to A* via an inverter which can (e ver' heav' a / $W inverter willweigh a(out / Kgs (ut occup' onl' a few s4uare feet of space! 5f theconstruction cannot support this weight the inverter ma' need to (e placed on theground floor with appropriate ca(les chosen to compensate for energ' loss!

(ind $actor – As Andhra Pradesh is in a c'clone prone area the mountingstructures for the solar panels should (e designed to withstand wind speeds of

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/&-/" $ph

Salt corrosion – As @isha$hapatnam is a coastal cit' the solar panels chosenshould have cleared salt mist corrosion testing 753* ,/0/%5S ,/0/ compliant8

Our Reco##endation for Roofto& Solar in Andhra Pradesh

ased on the a(ove discussion Kleancell Technologies recommendation for solar plants in A!P is

"ulti&le &ower source integration – As the output from a rooftop solar plantvaries it must alwa's wor$ in con>unction with other sources of power t'picall'

utilit' grid power and diesel power! This is achieved using

Hy!rid inverter – A rooftop solar P@ s'stem that utiliBes a h'(rid inverter allowsthe solar plant to integrate with a diesel generator in addition to the utilit' grid!The solar plant serves to reduce diesel (ills (' supporting part of the overall load!

5ntegrating a rooftop solar plant with a diesel generator involves severalchallenges that need to (e overcome with careful design and siBing of the solar plant!

OR

ased on the annual consumption need to assess the siBe with 2et ;eteringfacilit'!

Corrosion resistant &anels – Cnl' panels that are 53* ,/0/%5S ,/0/compliant 7salt mist corrosion testing8 should (e used in coastal cities!

Cyclone rated #ounting structures – ;ounting structures that can withstand/&-/" $ph wind speed should (e used!

Cost of a Roofto& Solar Plant The cost of a rooftop solar plant is discussed indetail here and returns from su(stituting diesel with solar are discussed here! Asa rule of thum( a / $W solar plant that generates + $Wh of solar power per da'7on average8 will cost Rs! / la$h 7including installation charges (ut e9cluding(atteries8!

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*AEE US C2 F)/ ./)#../)

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Write to us at $leancelltechnologiesGgmail!com

rooftop solar – andhra pradesh

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