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Bhubaneswar Solar Calculator (TPCODL)

Rooftop solar payback for Bhubaneswar and Cuttack on TPCODL, with Odisha's state top-up of up to ₹60,000.

Updated · By Niraj Kumar · 1 source

Your home

Solar forSolar for
From your bill, enterFrom your bill, enter
₹
₹100₹50K

About 537 units a month on the TPCODL tariff. Use a year's average if your bill swings with the seasons.

Roof typeRoof type

Fine-tune

kW

Sized to cover a year of your consumption, at 4.9 peak sun hours a day in Odisha.

sq ft

About 100 sq ft per kW. Leave at 0 for no limit.

₹

Typical for an on-grid system from an empanelled vendor. Replace it with your quote.

%
0%15%

Indian residential tariffs have historically risen 4-7% a year.

%
0%2%

Monocrystalline panels typically lose about 0.5% a year.

How you payHow you pay
Pays for itself in3 yearsthen ₹13.83 L ahead after 25 years

A 4.5 kW system makes about 516 units a month, 96% of your use. Your bill drops from ₹3,000 to about ₹124 in year one.

Installed cost
₹2,47,500
PM Surya Ghar subsidy
− ₹78,000
State top-up
− ₹60,000
Odisha state top-up (OASBY)
Net cost to you
₹1,09,500
Saving in year one
₹34,521
Return (IRR)
35.5% a year
over 25 years, before tax
CO₂ avoided
105 tonnes
over 25 years
Subsidy56%
  • You pay44%
  • Central subsidy32%
  • State top-up24%
Your money over 25 yearsStill to recoverAhead
₹-5 L₹0₹5 L₹10 L₹15 LPayback, year 3.004812162025
Year-by-year cash flowShow
YearUnits madeBills without solarBills with solarUpkeep and EMIsRunning total
16,197₹36,014₹1,493₹0-₹74,980
26,166₹37,814₹1,666₹0-₹38,832
36,135₹39,705₹1,852₹0-₹979
46,105₹41,690₹2,052₹0₹38,660
56,074₹43,775₹2,266₹0₹80,169
66,044₹45,963₹2,496₹2,475₹1,21,161
76,014₹48,262₹2,743₹2,475₹1,64,204
85,983₹50,675₹3,008₹2,475₹2,09,396
95,954₹53,208₹3,292₹2,475₹2,56,838
105,924₹55,869₹3,596₹2,475₹3,06,636
115,894₹58,662₹3,921₹2,475₹3,58,902
125,865₹61,595₹4,269₹33,975₹3,82,254
135,835₹64,675₹4,670₹2,475₹4,39,784
145,806₹67,909₹5,173₹2,475₹5,00,045
155,777₹71,304₹5,712₹2,475₹5,63,162
165,748₹74,870₹6,291₹2,475₹6,29,265
175,720₹78,613₹6,912₹2,475₹6,98,491
185,691₹82,544₹7,579₹2,475₹7,70,981
195,662₹86,671₹8,292₹2,475₹8,46,885
205,634₹91,004₹9,057₹2,475₹9,26,358
215,606₹95,555₹9,875₹2,475₹10,09,563
225,578₹1,00,332₹10,750₹2,475₹10,96,670
235,550₹1,05,349₹11,687₹2,475₹11,87,857
245,522₹1,10,617₹12,687₹2,475₹12,83,312
255,495₹1,16,147₹13,757₹2,475₹13,83,227

How the Bhubaneswar Solar Calculator (TPCODL) works

Saving₍y₎ = [Bill(U) − Bill(U − G₍y₎/12)] × 12 × (1 + e)^(y−1), G₍y₎ = kW × H × 365 × PR × (1 − d)^(y−1)

This page uses the same method as the Solar ROI Calculator India, which explains each term and assumption in full.

Worked example

A Bhubaneswar home on TPCODL with a ₹2,000 monthly bill and a flat RCC roof, assuming prices rise 5% a year.

  1. 1Working the bill back through the TPCODL slabs, charges and duty gives about 378 units a month
  2. 2At 4.9 peak sun hours, 3.5 kW makes about 402 units a month, 100% of that use
  3. 33.5 kW at ₹55,000 per kW costs ₹1,92,500; PM Surya Ghar pays ₹78,000 and the Odisha state top-up (OASBY) ₹60,000, leaving ₹54,500
  4. 4The first year saves ₹24,122, and the saving grows as tariffs rise

The system pays for itself in about 2.2 years and leaves the household about ₹9,84,632 ahead over 25 years.

Frequently asked questions

How much subsidy can an Odisha household get in total?

Up to ₹1,38,000 for a 3 kW system: ₹78,000 from PM Surya Ghar and ₹60,000 from the state. Odisha pays ₹25,000 for 1 kW, ₹50,000 for 2 kW and ₹60,000 for 3 kW or more, which brings a 3 kW system to well under half its installed price.

Why is the payback still slower than the subsidy suggests?

Odisha's tariff is low, from ₹2.90 a unit and only ₹6.10 above 400 units, so each unit solar replaces saves less than in Maharashtra or Delhi. The large top-up makes up for much of it. The same tariff applies on TPWODL, TPSODL and TPNODL.

How does net metering settle on TPCODL?

Net metering with banked units carried forward and the surplus settled yearly at the OERC-approved rate.

Sources

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