Energy efficiency is a critical priority for Indian industry, both for cost reduction and environmental sustainability. The Direct Tax Code (DTC) 2025 supports energy efficiency investments through accelerated depreciation for energy saving devices at 40% — significantly higher than the general 15% rate for plant and machinery. This guide provides the complete rate table for energy saving devices and explains the compliance requirements.
The Depreciation Framework for Energy Saving Devices
Section 33 — Deduction for Depreciation
Section 33 provides for deduction in respect of depreciation of tangible and intangible assets used for business or profession.
Method of Depreciation
Depreciation is calculated on the Written Down Value (WDV) method for block of assets.
Rate — 40%
Energy saving devices are eligible for depreciation at the rate of 40% on the written down value.
Complete Rate Table — Energy Saving Devices (40%)
A. Specialised Boilers and Furnaces
| Device | Rate |
|---|---|
| Ignifluid/fluidized bed boilers | 40% |
| Flameless furnaces and continuous pusher type furnaces | 40% |
| Fluidized bed type heat treatment furnaces | 40% |
| High efficiency boilers (thermal efficiency >75% for coal, >80% for oil/gas) | 40% |
B. Instrumentation and Monitoring Systems
| Device | Rate |
|---|---|
| Automatic electrical load monitoring systems | 40% |
| Digital heat loss meters | 40% |
| Micro-processor based control systems | 40% |
| Infra-red thermography | 40% |
| Meters for measuring heat losses, furnace oil flow, steam flow, electric energy | 40% |
| Maximum demand indicator and clamp on power meters | 40% |
| Exhaust gases analyzer | 40% |
| Fuel oil pump test bench | 40% |
C. Waste Heat Recovery Equipment
| Device | Rate |
|---|---|
| Economisers and feed water heaters | 40% |
| Recuperators and air pre-heaters | 40% |
| Heat pumps | 40% |
| Thermal energy wheel for high and low temperature waste heat recovery | 40% |
D. Co-generation Systems
| Device | Rate |
|---|---|
| Back pressure pass out, controlled extraction turbines for co-generation | 40% |
| Vapour absorption refrigeration systems | 40% |
| Organic rankine cycle power systems | 40% |
| Low inlet pressure small steam turbines | 40% |
E. Electrical Equipment
| Device | Rate |
|---|---|
| Shunt capacitors and synchronous condenser systems | 40% |
| Automatic power cut-off devices (relays) mounted on individual motors | 40% |
| Automatic voltage controller | 40% |
| Power factor controller for AC motors | 40% |
| Solid state devices for controlling motor speeds | 40% |
| Thermally energy-efficient stenters | 40% |
| Series compensation equipment | 40% |
| Flexible AC Transmission (FACT) devices | 40% |
| Time of Day (ToD) energy meters | 40% |
| Equipment to establish transmission highways for National Power Grid | 40% |
| Remote terminal units for SCADA systems | 40% |
| Special energy meters for Availability Based Tariff (ABT) | 40% |
F. Burners
| Device | Rate |
|---|---|
| 0 to 10 per cent excess air burners | 40% |
| Emulsion burners | 40% |
| Burners using air with high pre-heat temperature (above 300°C) | 40% |
G. Other Equipment
| Device | Rate |
|---|---|
| Wet air oxidation equipment for recovery of chemicals and heat | 40% |
| Mechanical vapour recompressors | 40% |
| Thin film evaporators | 40% |
| Automatic micro-processor based load demand controllers | 40% |
| Coal based producer gas plants | 40% |
| Fluid drives and fluid couplings | 40% |
| Turbo charges/super-charges | 40% |
| Sealed radiation sources for radiation processing plants | 40% |
Comparison with General Rates
| Asset Category | Depreciation Rate |
|---|---|
| General plant and machinery | 15% |
| Energy saving devices | 40% |
Eligibility Conditions
1. Use for Business or Profession
The energy saving device must be used for the purposes of the business or profession.
2. Owned by the Assessee
The device must be owned wholly or partly by the assessee.
3. Used During the Tax Year
The device must be used at any time during the tax year for the purposes of the business or profession.
Special Rules
Less than 180 Days — Section 33(4)
If an asset is acquired during the tax year and put to use for less than 180 days, the deduction shall be restricted to 50% of the prescribed rate (i.e., 20% instead of 40%).
Additional Depreciation
Additional depreciation of 20% (or 10% if used for less than 180 days) is available for new machinery or plant acquired and installed by an assessee engaged in the business of manufacture or production of any article or thing.
Partial Use
If any building, machinery, plant or furniture is partly used for the purposes of the business or profession, the deduction shall be restricted to the fair proportionate part thereof.
Practical Compliance
1. Identify Eligible Equipment
- Determine whether the equipment falls within the list of energy saving devices
- Ensure the equipment is used for the purposes of the business or profession
2. Calculate Depreciation
- Calculate depreciation at 40% on the written down value
- Apply the 50% rule if the equipment was used for less than 180 days
3. Maintain Records
- Maintain records of equipment acquisition
- Maintain records of depreciation calculations
- Maintain records of energy savings achieved
4. Claim Depreciation
- Claim depreciation in the tax return
- Ensure the claim is supported by proper documentation
Consequences of Non-Compliance
Disallowance of Depreciation
If the depreciation is incorrectly claimed:
- The deduction may be disallowed
- Income may be recomputed
- Interest and penalty may be levied
Penalty
Non-compliance may result in penalty under Section 439 for under-reporting of income.
Expert Legal Guidance
Anuj Desai & Associates provides comprehensive legal advisory services on energy saving devices depreciation. Our direct tax experts help industry understand the depreciation rules, calculate depreciation correctly, and navigate the regulatory framework. We assist in depreciation computation, compliance review, and representation before income-tax authorities.
Disclaimer: This article provides general information and does not constitute legal advice. For specific guidance on energy saving devices depreciation or any other direct tax matter, please consult qualified legal professionals.
Need Expert Legal Guidance?
Navigating the complex energy saving devices depreciation framework requires experienced legal counsel. At Anuj Desai & Associates, we provide comprehensive direct tax advisory services, including:
- Depreciation Computation: Assistance with accurate depreciation calculation
- Equipment Classification: Guidance on eligible equipment classification
- Compliance Review: Review of depreciation compliance
- Representation: Representation before income-tax authorities
Contact us for expert legal guidance on your energy saving devices depreciation matters.