Solar Power : Internal Rate of Return
=======================
Indian Express ( 26 Jan ) carries following news :
“ Govt estimates 9 – 11 per cent IRR for renewable
projects “
The Ministry of New and Renewable Energy ( MNRE ), has
proposed Internal Rate of Return ( IRR ) of major renewable energy projects to
be in the range of 9 – 11 %
While computing IRR for “ Utility scale Solar “
projects , following have been assumed :
======================================================
ASSUMPTIONS :
·
Zero
government incentives
·
No
subsidy
·
No
market Risks ( Payment delays / curtailment )
·
Capacity
Utilization = 20 %
·
Capital
Cost ( Rs Cr / MW ) = 4.10
·
Average
Tariff ( Rs / kwh ) = 3.0
·
Weighted
Average Cost of Capital = 10.5 %
·
Corporate
Income Tax rate = 34.61 %
·
For
details, read : http://mnre.gov.in/file-manager/UserFiles/Draft-Report-Study-on-ERR-for-RETs.pdf
=======================================================
MY OWN INPUTS :
·
Target
for
Solar
= 100 GW by 2022
·
Achieved
till Dec 2017
= 15 GW
·
Remaining
by Dec 2022 =
85 GW ( app. 1.5 GW per month for each of next 60 months )
·
Capital
cost /
GW
= Rs 4,100 Cr ( @ Rs 4.1 cr /
MW assumed in MNRE study )
·
Capital
needed per month = Rs 6.150 Cr ( for 1.5 GW per
month )
·
Current
maximum installation of solar PV ground mount projects done in a year is 3700 MW
QUESTIONS :
Given the following “ Negative Factors “ , are Private
Indian businesses likely to come forward with investment of Rs 6,150 Cr , every
month , month after month , for next 60 months ?
·
Solar
tariff have already hit Rs 2.4 / kwh and continue to drop year after year @ 15
%
·
Will
any bank come forward to lend huge amounts to Solar projects whose IRR is only
10 % - and might further go down as Solar Tariff drop ?
·
How
will IRR work out when DISCOMS back out of legally binding PPA ?
·
What
happens if proposed “ Safe-Guard Duty “ ( of 70 % ) on imported Chinese PV
panels , push up the Capital Costs ? or , when projects are constrained to buy
locally manufactured panels at much higher prices ?
·
What
would it do to demand situation if Roof Top Solar become a cheaper alternative
to the consumers ( as compared to Utility Solar Projects ) , since there
is no “ Transmission Costs “ involved and there is possibility to sell the
surplus power to DISCOM under “ Reverse Metering “ ?
Despite these “ Negative Factors “ , is there some way
, by which Private Sector can be motivated to come forward to invest Rs 6,100
cr / month , month after month , for next 60 months ?
================================================
I believe , there is !
If the IRR , instead of hovering around 10 % , can be
raised to 50 % , then we can expect Private Sector to put up 1.5 GW projects,
EVERY WEEK , instead of every month !
Now , calculating IRR is a bit lengthy /
trial-and-error process , employing formulas comprising “ variables “ such as :
·
Weighted
Average Cost of Capital, adjusted with the long-period consumer price index for
the past 20 years to arrive at the real discount rate. ( Taken at 10.5 %
by MNRE study )
·
Corporate
Income Tax rate ( taken at 34.61 % by MNRE study )
·
Initial
Amount of Capital
·
Potential
Opportunity Costs
·
Initial
Cash Flow
·
Subsequent
Period-wise Cash Flows ( Future stream of benefits )
QUESTIONS :
How would the IRR look if ,
·
Weighted
Ave Cost of Capital was “ 0 % ( Zero per
cent ) “ instead of 10.5 % ?
·
Corporate
Income Tax rate was “ 0 % ( Zero per cent )
“ instead of 34.61 % ?
In such a case , could IRR
become 50 % ? (
MNRE study does not provide enough data for figuring out )
But if IRR does really turn out to be somewhere
near 50 % , will Private
Sector rush in to set up 1.5 GW of Solar projects
EVERY WEEK ?
And , would they be bothered even if Solar Tariff
drops to ONE RUPEE per kwh ?
This is NOT a fantasy !
Masdar and EDF Energies
consortium recently placed the lowest-ever bids for a solar PV project. The
consortium placed a bid of 1.78¢ / Kwh for a 300 megawatt
project in Saudi Arabia. ( ie : approx. Rs 1.17 / kwh )
One of the reasons , is :
The lending rate in Saudi
Arabia has remained constant at 2% since 2009 !
Chile recently awarded
2.2 GW in renewables tenders at an average LCOE of $ 32.5/MWh ( approx. Rs 2.11 / kwh )
HOW CAN WE GET “ RISK-FREE
“ CAPITAL AT “ 0 % “ INTEREST RATE ?
Besides showing “ how “ ,
in my following blog / email , I also suggested that the Govt approved Solar Power Project
SPVs , be exempted from payment
of Corporate Income Tax for 10 years :
No comments:
Post a Comment