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Nipha Steels Ltd. And Another v. W.B State Electricity Board And Others

Supreme Court Of India
May 7, 2003
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Factual and Procedural Background

A group of large industrial consumers (“the appellants”) had entered into standard-form agreements with the West Bengal State Electricity Board (“the Board”) for the supply of electricity. Although the agreements imposed a monthly maximum demand charge (calculated in kVA) and a separate minimum-guaranteed consumption charge, the consumers contended that frequent disruption and irregular supply of power justified remission of the maximum demand charge in the same way that the agreement expressly permitted remission of minimum charges in certain circumstances.

The consumers’ writ petitions were allowed by a learned Single Judge of the Calcutta High Court, but the Division Bench reversed that decision. The present appeals before the Supreme Court challenge the Division Bench judgment.

Legal Issues Presented

  1. Whether, under the standard-form supply agreements, the Board can levy the contractual monthly maximum demand charges even when there has been disruption or irregularity in the supply of electricity.

Arguments of the Parties

Appellants' Arguments

  • The expression “per month” in the clause on maximum demand charges implies an obligation of uninterrupted supply; therefore, charges must abate when supply is interrupted.
  • The Board’s past practice of granting remission showed the parties’ mutual understanding that remission was permissible, and later abandonment of that practice was arbitrary.
  • Analogous treatment should be given to maximum demand and minimum charges because the agreement expressly provides remission for minimum charges during interruptions.
  • Equity and established precedents (e.g., Orissa SEB v. IPI Steel Ltd.; Northern India Iron & Steel Co.; Bihar SEB v. Green Rubber Industries; Raymond Ltd. v. M.P. Electricity Board) support remission.

Respondent Board's Arguments

  • Maximum demand charges and minimum-guaranteed charges serve different purposes: the former defrays capital costs; the latter covers running costs based on consumption.
  • The contractual formula for maximum demand is linked only to the highest kVA drawn during any 30-minute period in the month, not to continuous supply during the whole month.
  • Since the agreement contains no clause permitting abatement of maximum demand charges, remission cannot be implied.
  • The Division Bench correctly distinguished the two kinds of charges and upheld the Board’s demand.

Table of Precedents Cited

Precedent Rule or Principle Cited For Application by the Court
Orissa SEB v. IPI Steel Ltd. (1995) 4 SCC 320 Explains two-part tariff system and meaning of “maximum demand” charges measured over any 30-minute period in a month. Relied on to show that maximum demand charges are independent of uninterrupted monthly supply.
Northern India Iron & Steel Co. v. State of Haryana (1976) 2 SCC 877 Details not specified in the opinion. Cited by appellants; the Court found it inapposite to the specific question of remission of maximum demand charges.
Bihar SEB v. Green Rubber Industries (1990) 1 SCC 731 Validity of contractual minimum-guaranteed charges even during reduced supply. Used to reinforce that contractual levies are enforceable as agreed.
Raymond Ltd. v. M.P. Electricity Board (2001) 1 SCC 534 Distinguishes minimum-guaranteed charges from actual supply and confirms measurement of maximum demand on a monthly basis. Quoted to underline that maximum demand is determined by the highest 30-minute draw in a month, regardless of interruptions.
Andhra Steel Corpn. Ltd. v. A.P. SEB (1991) 3 SCC 263 State concessions do not override contractual liability to pay minimum-guaranteed charges. Referenced to show that liabilities arise from the agreement, not from subsequent governmental directions.
Ferro Alloys Corpn. Ltd. v. A.P. SEB, 1993 Supp (4) SCC 136; AIR 1993 SC 2005 Parties are bound by standard-form supply agreements executed with full knowledge of terms. Cited to emphasise that the consumers cannot escape agreed terms of payment.

Court's Reasoning and Analysis

After examining the relevant clauses, the Court stressed that maximum demand and minimum charges operate in completely different spheres. Minimum charges relate to consumption and may expressly allow remission when supply is curtailed, whereas maximum demand charges are intended to defray the Board’s capital costs and are calculated solely from the highest kVA load recorded during any consecutive 30-minute period in a month.

The Court noted that:

  • Clause 13(4) and Schedule II fix a flat rate of Rs 33 per kVA per month, with no clause providing remission for interrupted supply.
  • The statutory definition of “maximum demand” (Supply Act, s. 2(8)) focuses on the peak load, not on continuous supply.
  • Accepting the consumers’ argument would introduce a variable element into a charge that the parties expressly agreed would be uniform.
  • Past remission practices cannot override the clear contractual text, especially when such remission is not mentioned in the agreement.
  • The precedents cited by the appellants dealt with minimum-guaranteed charges or arose in different factual contexts and therefore did not support the requested relief.

The Court concluded that the agreements were “clear and unambiguous” and left no scope for implied remission of maximum demand charges.

Holding and Implications

The appeals are dismissed.

Consequently, the West Bengal State Electricity Board is entitled to recover the contracted monthly maximum demand charges notwithstanding interruptions in supply. The decision reaffirmed that maximum demand charges serve a distinct purpose from minimum consumption charges and are not subject to abatement unless the contract expressly so provides. No new legal doctrine was created; the ruling applies the existing contractual and statutory framework to the parties’ dispute.

Show all summary ...

Arijit Pasayat, J.— All these appeals involve identical disputes and, therefore, are taken together for disposal. The only issue involved is whether the monthly maximum demand charges for the supply of power was rightly demanded by the West Bengal State Electricity Board (hereinafter referred to as “the Board”) notwithstanding disruption and irregular supply of electricity by it.

2. According to the appellants (hereinafter referred to as “the consumers”) when the true essence of the agreement made between them and the Board was uninterrupted and/or regular power of supply, analogy can be drawn from the deductions granted in respect of the minimum charges in case of disruption/interrupted supply. The plea found favour with a learned Single Judge of the Calcutta High Court, but in appeal filed by the Board the view was reversed.

3. Factual background is almost undisputed and, therefore, a brief reference thereto would suffice.

4. Consumers entered into agreements with the Board for supply of power. The agreement in the standard form is common for all the appellants who are large industrial consumers. The agreements were in terms of the Indian Electricity Act, 1910 (in short “the Act”), West Bengal Electrical Energy (Maintenance of Supply) Order, 1977 (in short “the Order”) and the Electricity (Supply) Act, 1948 (in short “the Supply Act”). The appellants on receipt of bills from the Board took the stand that in view of interrupted supply of electricity, the demand of maximum demand charges at the rate fixed in the agreement was not proper. The agreement itself provided for remission under identical circumstances in respect of minimum charges under certain circumstances. There was no reason as to why the departure should be made in the case of maximum demand charges. It was pointed out that under certain circumstances notwithstanding the Board's inability to supply power without interruption, minimum charges were specifically provided to be payable. There was no such provision so far as maximum demand charges are concerned. Previously, the Board used to grant remission even in respect of maximum demand charges and without any logic and/or basis the same was abandoned. Intention of the parties to the agreement can be clearly discerned from the fact that even in the absence of any specific prescription in the agreement, remissions were being granted. That is how the parties interpreted the agreement and to crystallise this understanding into a concrete form, the subsequent agreements contain clauses similar to those in respect of minimum charges. When the plea was not accepted by the Board, the High Court was approached and as noted supra the learned Single Judge accepted the view but the Division Bench took a contrary view.

5. Mr S. Ganesh, learned Senior Counsel appearing for the appellants in CA No. 5551 of 1997 with reference to various clauses of the agreement submitted that learned Single Judge was justified in his view. Whenever intention was that levies are to be made in respect of irregular supply position, specific provision was made in the agreement. When the Board itself had understood that way as evident from the past practice, it was not open to take an opposite view.

6. In the clause relating to maximum demand charges, the stress is on the expression “per month” and that itself is indicative of the fact that the parties to the agreement intended that there should be uninterrupted supply and the charges were to suffer abatement in case of interruption/part-supply. When a contract is for continuous supply then there is an inbuilt intention that there should be abatement of the charges when continuous supply is not there. The interpretation by learned Single Judge of various clauses cannot be said to be unreasonable and the Division Bench ought not to have interfered with the same. Though there is no specific provision for varying the rate, the same has to be read into the agreement, and both in law and equity was to be granted. It is not that the appellants were seeking total waiver; what was really called for related to remission for interrupted/non-supply. Strong reliance was placed on several decisions to buttress their arguments. Specific reference was made to Orissa SEB v. IPI Steel Ltd. (1995) 4 SCC 320, Northern India Iron and Steel Co. v. State of Haryana (1976) 2 SCC 877, Bihar SEB v. Green Rubber Industries (1990) 1 SCC 731 and Raymond Ltd. v. M.P Electricity Board (2001) 1 SCC 534. Mr Pratik Dhar, learned counsel appearing for the appellants in CAs Nos. 5550-53 of 1997 adopted the arguments of Mr Ganesh, but added that the maximum demand charge is relatable to electrical energy supply. When for a major portion of a month there is no supply, question of levy at the stipulated rate does not arise. Mr Parijat Sinha, learned counsel appearing for the appellants in CA No. 5554 of 1997 adopted the arguments of Mr Ganesh. Mr H.K Puri, learned counsel for the respondent Board submitted that the minimum-guaranteed charges and the maximum demand charges stand on different footings and logic applicable to one cannot be applied to the other. In case of minimum-guaranteed charges, the basis is consumption; if power could not be supplied up to the agreed quantum, except in certain circumstances, the rebate when specifically provided for could be granted. But where the foundation is different, as in the case of maximum demand charges, the rate agreed is applied for the purpose of computation of the charges. Therefore, the Division Bench was justified in reversing the views of the learned Single Judge.

7. Before we cogitate and analyse the rival contentions in detail, it would be proper to pore over several clauses in the agreement to which reference has been made by learned counsel for the parties:

“2. The electrical energy so supplied shall be of three-phase, alternating current at a declared pressure of volts between phases and frequency of fifty complete cycles per second at the consumer's/consumers' terminals.
3. Subject to the provisions of clause 21 hereinafter contained, the consumer(s) shall be entitled for the said purposes to such supply up to but not exceeding maximum number of kilovolt-ampere for each of the first five years of supply as mentioned in Schedule I hereto (hereinafter referred to as ‘the contract demand’) which shall be deemed to be part of this agreement.
4. (i) The consumer shall begin to take electrical energy from the Board under the conditions of this agreement from the date (hereinafter referred to as the date of commencement of supply) to be mutually agreed upon but not exceeding two months from the date on which intimation is sent in writing to the consumer(s) by the Board that the supply of electrical energy to the full extent of the contract demand is available under this agreement.
(ii) If the consumer(s) fail(s) and/or neglect(s) to obtain the supply of electrical energy as from the date when the same is available for supply, the consumer(s) shall be liable to pay to the Board from the date when the consumer should have taken the supply in terms of clause 4(i), the minimum charges which are provided hereinafter to be payable by the consumer(s) irrespective of the fact that the consumer(s) has/have not consumed any electrical energy.
11. The Board shall not in any way be held responsible nor shall be liable to pay compensation for any loss suffered by the consumer as a result of and failure, interruption, defect or diminution in the supply due to the breakdown, breakage or damage of any plant, machinery, service or distributing lines or any accessories in connection therewith or due to the development of faults in any part of the system for transmission of energy or due to acts of God, war, riot, civil commotion, strikes, lockouts, labour troubles, pestilence, fire, storm, tempest, floods, earthquakes, lightning, theft, larceny or other force or accident or due to any cause whatsoever beyond the reasonable control of the Board.
13. (1) The metering equipment shall generally include instrument transformers, polyphase integrating kilowatt-hour meter, kW/kVA maximum demand indicator and RkVAh/kVAh meter. The integrating period of the maximum demand indicator shall be controlled by time switch of a suitable type.
(2) The readings of the said meters shall be taken by the representatives of the Board once in a calendar month on or as near as practicable the same day of each calendar month. The readings so taken shall be binding and conclusive between the consumer(s) and the Board as to the amount of demand and electrical energy supplied to the consumer(s). The consumer(s) may send his/their/its representatives at the time of the reading of meters but in case the consumer(s) does/do not arrange for his/their/its representatives to be present for the reading of the meters, the readings of the meters taken by the representatives of the Board shall be conclusive and consumer(s) shall not have the right to raise any objection regarding the correctness or accuracy of such readings.
(3) In the event of any meter being found defective and check-meter not having been installed, the power and energy consumption during the period when the meter was deemed to be defective shall be determined by taking an average consumption and other parameters for the preceding three months or during any previous or subsequent period that may be reasonably comparable.
(4) Monthly maximum demand of the consumer(s) for the supply of power in each month shall be the largest average kilovolt-amperes delivered to the consumer(s) at the point of supply during any consecutive thirty minutes in the month. In the case where kVA demand indicator is not installed, monthly maximum demand in kVA for tariff purpose will be estimated by dividing the reading in kilowatts of the maximum demand indicator by the monthly average power factor calculated from the number of units of kilowatt-hours and reactive kilovolt-ampere-hours as recorded in the meters during the same month. Fraction of kVA less than 0.5 will be discarded and that of 0.5 and above will be taken as 1 kVA.
15. (1) The consumer(s) shall pay to the Board for electrical energy supplied under the agreement in accordance with the tariff under Rates E(b) or F(b) as set forth in Schedule II hereto which shall be deemed to be part of this agreement.
(2) If the Board by a notification makes any alteration in the aforesaid rates for energy, tariff and its associated stipulations, such altered rates, tariff and the associated stipulations shall be treated as if the same were part of this agreement in supersession of the tariff set forth in Schedule II hereto with effect from the date fixed in the notification.
(3) If energy used for domestic purposes (vide general conditions of supply) in a month exceeds 10% of the total monthly energy consumption, then instead of Rate E(a) the scale of rates under Rate F set forth in Schedule II, shall be applicable.
16. (1) Subject to the provision of clause 16(3) so long as the agreement is not determined the consumer/consumers shall pay minimum charges provided in Schedule I hereto irrespective of the fact that the consumer/consumers could not consume electricity to cover such minimum charge during respective years due to disconnection of supply for any laches or default on the part of the consumer.
(2) For calculation of annual minimum charge, one-year period shall be taken from April to the following March. When connection is given in any intermediate month, the minimum charge shall be calculated from the month of connection to the following March on monthly pro rata basis:
Provided when connection is given after the 15th day of any month, that month shall not be counted in calculating the year of minimum charge.
(3) If at any time the consumer(s) is/are prevented from receiving or using the electrical energy to be supplied under this agreement either in whole or in part owing to any strike, riots, insurrections, command of a civil or military authority, fire, explosions, act of God or any other causes beyond his/their/its control or if the Board is prevented from supplying or is unable to supply such electrical energy owing to all or any of the causes mentioned, then the minimum charge or guarantee payable by the consumer shall be reduced in proportion to the ability of the consumer(s) to take or the Board to supply such power provided the consumer(s) notifies/notify the Board in writing within fifteen days of occurrence of any event as noted above with necessary details to prove that the occurrence is preventing/has prevented the consumer(s) from receiving or using the full amount of contractual demand. The consumer(s) shall also keep the Board informed once in every fortnight of further developments regarding the event. No remission in the agreed minimum charge as mentioned in Schedule I hereof, will be considered if no such notice is received by the Board. Subject as aforesaid the consumer(s) shall in any event be liable to pay the minimum charge every year as mentioned in Schedule I hereof.
21. (1) In the event of the consumer(s) desiring to increase his/its/their contract demand in any year during the continuance of the agreement, the Board may require the consumer(s) to give the Board one year's notice in writing stating the quantity of power required.
(2) The consumer(s) shall pay to the Board any expense incurred by reason of alteration and/or extension in respect of any service, switchgear meters and other equipment necessitated to meet such altered contract demand.
(3) The minimum charge as provided in Schedule I may be increased to take into account the altered contract demand.”

8. The rate applicable for the purpose of levying maximum demand charges is indicated in Schedule II. In Schedule I, it is stated that the consumer(s) during the continuance of the agreement shall be entitled to consume electrical power up to but not exceeding the contract demand. The relevant portions in Schedules I and II in one of the agreements (taken as sample) read as follows:

“Schedule I
The consumer(s) during the continuance of the agreement shall be entitled to consume electrical power up to but not exceeding the contract demand.
Where the actual maximum demand in any month of a year of operation will exceed the corresponding contract demand such maximum demand will be deemed to be the contract demand for that particular year based on which minimum amount payable by the consumer per annum will be charged.
The consumer(s) during the continuance of the agreement guarantee to pay for such amount of electrical energy as well in aggregate (excluding fuel surcharge) at the current rates produce annually the above minimum-guaranteed amounts.
Schedule II
Rate E(b) — industrial purposes
(i) demand chargeRs 33.00 per kVA per month
plus
(ii) energyRs 12.8 per kWh.”

9. It is to be noted that in exercise of power under Section 22-B of the Act, the Board was prevented from supplying electrical energy during certain specified hours of each day of each month. Definition of “maximum demand” in terms of Section 2(8) of the Supply Act is as follows:

“2. (8) ‘maximum demand’ in relation to any period shall, unless otherwise provided in any general or special order of the State Government, mean twice the largest number of kilowatt-hours or kilovolt-ampere-hours supplied and taken during any consecutive thirty minutes in that period;”

While Section 22 is enacted to protect interests of individuals as well as licensees, Section 22-B deals with States' power to control the distribution and consumption of energy. Under sub-section (1) thereof, if the State Government is of the opinion that it is necessary or expedient so to do, for maintaining the supply and securing the equitable distribution of energy it may by order provide for regulating the supply, distribution, consumption or use thereof.

10. It is necessary to elaborate what does the expression “maximum demand” mean and signify. In the case of bulk consumers and large-scale consumers, the Electricity Boards all over the country generally adopt a two-part level system. One part is called “the maximum demand charges” and the other part “consumption charges”. Every such consumer is provided with two meters. One is called the “trivector meter” and the other is the normal meter which records the total quantity of energy consumed over a given period — which is ordinarily a month. The meter which records the total consumption requires no explanation or elaboration. It is the other meter which requires some explanation. Every large-scale consumer knows the amount of energy required by him and requests for it from the Board. If the Board agrees to supply that or any other particular amount of energy, it makes necessary arrangements therefor by laying the lines to the extent necessary and installing other requisite equipments. It is obvious that if a factory uses energy at a particular level/load and for a particular period, it consumes a particular quantity of energy. The trivector meter records the highest level/load at which the energy is drawn over any thirty-minute period in a month while the other meter records the total consumption of energy in units in the month. The position was highlighted by this Court in Orissa SEB case (1995) 4 SCC 320.

11. The importance and significance of maximum demand is that the consumption of a given plant and machinery determines the type of lines to be laid and power of transformers and other equipments to be installed for the purpose.

12. It is to be noted that minimum charges and maximum demand operate in different areas. While consumption and the ability to supply can be reckoned for the purpose of fixing minimum charges, the same is really not of significance for the purpose of maximum demand. What may be applicable to the case of minimum charges does not per se become applicable to maximum demand. As was noted in Raymond Ltd. case (2001) 1 SCC 534 minimum-guaranteed charges relate to the consumer's obligation to pay under specific agreement with the Board. It operates irrespective of the actual quantum of consumption by a consumer which may be lower than the minimum-agreed extent and irrespective of the required or agreed quantum of supply by the Board which may fall below even the minimum level of the contract demanded; but when the minimum-guaranteed charge is not any fixed amount and is in terms of electrical energy to be consumed, the consumer's obligation to pay the same would depend upon the implied corresponding obligation of the Board to supply energy at least to the minimum extent. The actual supply made by the Board in individual cases has to be worked out for determining the consumer's liability. The demand would obviously be in terms of the agreement. In Raymond Ltd. case (2001) 1 SCC 534 it was observed that the contract for supply of electrical energy cannot be treated on a par with any other contracts of mutual rights and obligations. The terms and conditions of supply as envisaged in the contract and the statutory provisions and general conditions have been standardised for uniform application among consumers with variations merely necessitated by the different classes or categories of consumers and there is no scope otherwise for expecting any individual or free bargaining right in this regard by each consumer with the Board.

13. In Orissa SEB case (1995) 4 SCC 320 this Court explained the meaning of the expressions “maximum demand charges”, “consumption charges” and dealt with the rate as well as the purpose of the two meters. The normal meter as noted in the decision is made for recording the total quantum of energy consumed for a given period — invariably a month and the trivector meter is made for recording the highest level/load at which the energy is drawn over any thirty minutes' period in a month. This is a part of the two-part tariff. The levy is inextricably linked to the highest reading recorded and the foundation is “thirty minutes' period in a month”. It nowhere mandates or even by implication refers to uninterrupted or regular supply for the whole month.

14. Even a bare reading of the relevant clause relating to maximum demand shows that there was no scope for any remission in case of an interrupted or irregular supply. It deals with computation on the basis of reading recorded by the meter installed for the purpose. If the contention of the learned counsel for the appellants is accepted it would mean that the prescription of a particular rate in Schedule II would become meaningless as it would become a variable figure.

15. Learned counsel for the appellants emphasised that whenever there was an intention that irrespective of the supply position a particular levy is to be made, specific provision was made therefor as in the case of minimum charges. Even if that logic is applied the reverse position can operate. Since there was no such specific provision made in the agreement it can be spelt out that the intention was not to grant any such remission.

16. The agreements of the Board in various cases contain different stipulations regarding minimum charges. In some cases prescriptions are there for remission in case of disruption/irregularity/non-supply. In other cases they provide for full levy notwithstanding any of the aforesaid situations. The appellants rely on those cases differently to buttress their stand. For the first category it is submitted as noted above, that remission is logical; while for the latter it is indicated that specific provision is necessary for the levy. It is trite law, so far as the second category is concerned, that the prescription is valid. (See Bihar SEB case (1990) 1 SCC 731 and Andhra Steel Corpn. Ltd. v. Andhra Pradesh SEB (1991) 3 SCC 263.) In Andhra Steel case (1991) 3 SCC 263 it was held that decision of the State Government under Section 78-A of the Supply Act, to fix concessional tariff is not sufficient to absolve the consumer from the liability undertaken to pay the minimum-guaranteed charges. The liability flows from the agreement. As noted in Raymond Ltd. case (2001) 1 SCC 534 the parties have agreed that the maximum demand of the supply is to be measured with reference to the month at the point of supply to the consumer and will be determined on the basis of the supply during any consecutive thirty minutes in that month as recorded by the trivector meter.

17. Strong reliance was placed by learned counsel for the appellants on certain observations made in the cases noted supra. They were made in different factual backdrops. None of them directly dealt with the issue of remission of maximum demand. Therefore, no support is available to the appellants from those cases.

18. Maximum demand and minimum charges are levied for different purposes. The former is charged to defray capital costs and the latter to meet running charges. The various Boards require huge capital outlay for machinery, plants, equipments, transmission lines etc. As noted in Orissa SEB case (1995) 4 SCC 320 provision has to be made for depreciation of machineries and other depreciable assets. In addition, maintenance of plants, transmission lines etc. has to be done requiring deployment of huge staff. At the cost of repetition, it has to be stated that demand charges are levied and collected to meet the capital outlay, while running charges are met by levy and collection of consumption charges. These distinctive features make the levies conceptually different.

19. The two do not in any way overlap and the provisions therefor do not contradict each other or create identical base for their operation. In Ferro Alloys Corpn. Ltd. v. A.P SEB 1993 Supp (4) SCC 136, AIR 1993 SC 2005 it was noted that though the agreements contained conditions fixed by the Boards in advance and are open to acceptance by the prospective customers, the parties are bound by the terms if they have been entered by the parties with their eyes open.

20. So far as the applicable clauses are concerned, in the present appeals, the terms are clear and unambiguous. In view of the purpose for which the maximum demand is levied, it is crystal clear that there is no scope for granting any remission in the manner claimed by the appellants. The appeals are without any merit, deserve dismissal, which we direct. Parties to bear their respective costs.