Kochi : Kerala’s latest electricity crisis is not the result of a single problem. A combination of rapidly rising electricity demand, limited domestic generation, stressed hydropower reservoirs, reduced availability of power from outside the state, expensive short-term purchases and inadequate long-term procurement has put pressure on the state’s power system.
The situation became particularly difficult in September 2026 because electricity consumption remained unusually high even during the monsoon season. Maximum demand crossed 5,000 MW, compared with an average of around 3,600–3,700 MW during the corresponding period last year, according to a recent report.
Demand Has Changed Dramatically
Air conditioners, fans, refrigerators, water pumps, electric vehicles and other appliances are increasing household and commercial electricity consumption.
During the summer of 2026, Kerala’s average daily electricity demand reached around 5,800 MW, approximately 800–1,000 MW higher than the previous summer. On April 18, consumption touched 117.16 million units, while evening peak demand also reached record levels.
The problem is particularly severe during evening peak hours when demand rises rapidly.
Kerala Depends Heavily on Electricity From Outside
Kerala cannot meet its total electricity requirement through its own generation. Hydropower remains the state’s major domestic source, but generation depends heavily on reservoir levels and rainfall.
During periods of high demand, KSEB has to purchase electricity from outside sources and power exchanges.
The problem becomes serious when other states also face shortages.
In September 2026, heavy monsoon rainfall affected coal-based thermal generation in parts of eastern India. High moisture in coal — described as the “wet coal” phenomenon — reduced generation at several thermal stations, affecting the supply available to Kerala under existing arrangements.
Low Reservoir Levels Are Another Major Concern
Hydropower provides an important buffer for Kerala, but reservoirs cannot be treated as an unlimited source.
During the 2026 summer, reservoir levels came under pressure because of increased hydropower generation. KSEB had to balance the immediate need for electricity against the need to preserve water for future months.
This makes reservoir management critical.
Why Can’t KSEB Simply Buy More Electricity?
Because electricity becomes expensive when everyone needs it at the same time.
KSEB can purchase electricity through various market mechanisms, but short-term power procurement can be considerably more expensive than electricity secured through long-term contracts.
During the 2026 crisis, market prices rose sharply at certain periods, increasing the financial burden on the utility.
This is why simply buying additional electricity every time demand rises is not a sustainable long-term strategy.
How Can Kerala Permanently Reduce Power Cuts?
- Secure Long-Term Power Contracts
Kerala needs a carefully designed 10–15-year power procurement strategy.
A combination of:
Long-term PPAs
Medium-term contracts
Renewable energy
Storage
Flexible generation
Power banking arrangements
can reduce dependence on expensive spot-market purchases.
- Build Large-Scale Battery Storage
One of Kerala’s biggest challenges is the mismatch between solar generation and peak demand.
Solar electricity is available mainly during daylight hours, while Kerala’s peak demand is generally in the evening.
Large-scale Battery Energy Storage Systems can store daytime solar power and release it during evening peak hours.
- Accelerate Pumped-Storage Projects
Pumped-storage hydropower can effectively function like a giant rechargeable battery.
During periods of excess electricity, water can be pumped to an upper reservoir. During peak demand, the stored water can be released to generate electricity.
For a state with significant hydropower potential, this could become an important component of Kerala’s future energy strategy.
- Expand Rooftop Solar
More rooftop solar should be installed on:
Houses
Government buildings
Schools
Hospitals
Commercial buildings
Industrial units
But solar expansion should increasingly be combined with storage so that excess daytime generation can support evening demand.
- Improve Reservoir Management
Hydropower generation should be based on a combination of:
rainfall forecast + reservoir levels + electricity demand + market prices + expected future inflows.
AI-based forecasting and reservoir management could help KSEB decide when to conserve water and when to maximise generation.
- Reduce Peak-Hour Consumption
Consumers can also help reduce the pressure on the grid.
During peak hours, households can:
Avoid unnecessary air-conditioner use
Shift EV charging to off-peak hours
Avoid operating high-power appliances simultaneously
Use energy-efficient appliances
Make better use of rooftop solar and battery storage
KSEB has previously appealed to consumers to reduce consumption during peak periods when the grid is under pressure.
- Upgrade the Transmission Network
Generation alone will not solve the problem.
Kerala also needs investment in:
New substations
Stronger transmission corridors
Transformer upgrades
Smart-grid technology
Automated fault detection
Distribution network modernisation
High demand has already put pressure on the transmission and distribution network in certain periods, causing voltage fluctuations in some areas.
Conclusion: Kerala Needs Energy Security, Not Just Emergency Power Purchases
Kerala’s power-cut problem is ultimately a structural energy-security issue.
The immediate causes may change from season to season — extreme heat, weak rainfall, low reservoir storage, coal shortages elsewhere or expensive power-market prices.
But the long-term solution is clear:
More reliable long-term procurement + more domestic renewable generation + battery storage + pumped storage + scientific reservoir management + stronger transmission infrastructure + peak-demand management.
If Kerala follows this integrated approach, dependence on emergency power purchases and sudden load restrictions can be significantly reduced.
