Saturday, 3 May 2014

On-demand power and energy security for India

Where do we stand today ?

Energy security for India is substantially electricity security. Except largely for domestic cooking, road transportation, some part of industrial heating and railway traction, electricity is urban and industrial India’s primary source of energy.

India has an installed grid-connected power generation capacity of about 2,40,000 MW. Prevalent peak demand is currently said to be of the order of 1,35,000 MW of which about 96% is met (Central Electricity Authority data – Feb’ 2014). Therefore, on-demand power should apparently not be too difficult. However, the physical reality appears to be different.

How are we ‘managing’ ?

Consumers belonging to the commercial, industrial & urban domestic categories try to achieve on-demand power by backing-up grid supply either with battery storage coupled with DC to AC inverters or with diesel generating sets. Rural consumers rarely have such ‘luxuries’. While diesel sets are a very expensive alternative, battery-backed DC to AC inverters are viable only if grid non-availability is limited to just a few hours a day. 

Improving the supply side

On-demand power from the grid calls for reliability in the electricity supply and delivery industry. Supply-side reliability could be achieved through contracted access to long-term and medium term resources, balanced by short-term contracts to meet imbalances.  Growth of long term supply sources within the country has significantly slowed down despite substantial private sector participation. Changing goalposts for environmental clearances, uncertain fuel availability, weak financial position of distribution utilities (who are the bulk buyers) and the huge uncertainties involved in competitively bid 25 year power purchase agreements (PPAs) have made project financing very difficult. 

What are we doing about energy imports ?

Besides an increasing effort to source electricity from neighboring countries (hydro power from Bhutan on a concrete basis and from Nepal on a rhetorical basis!), there is also effort being made to source fuel from abroad for electricity generation (through multiple agency uncoordinated coal imports from Indonesia, Australia & Southern Africa and planned pipeline gas imports from Turkmenistan & Iran). 

And distributed generation ?

Security of both availability & pricing of energy is now being strengthened through development of distributed sources of generation like solar photo-voltaic, wind, biomass and biogas. While rooftop solar PV is picking up in India, there are new issues that have arisen internationally due to the reduced usage of the grid-network when solar panels generate enough power locally during the day. Arizona has already implemented an additional user charge on consumers for grid-redundancy caused by rooftop solar and Germany is legislating a similar charge.

Easing electricity flow across the market

Access to electricity from non-proximate resources for bridging short-term demand-supply gaps calls for efficient short-term access to transmission pathways, something that continues to be very difficult. Despite legal provisions for ‘open access’ to transmission & distribution pathways that would enable consumers to purchase power from anywhere, regulators have tended to protect the incumbent distribution utilities rather than the power-deprived consumer. 

Balancing demand and supply

Reliability at the retail level further entails well maintained distribution assets, including wires, transformers, switching devices and meters. Effective balancing of demand & supply at an optimal cost also requires an efficient commercial mechanism at both bulk and retail levels. This will enable cost recovery and generation of signals that can incentivise investment in fresh and/or more efficient supply and delivery resources. Such signals can pinpoint higher demand based on location, time of use, class of consumer, voltage level etc.

Commercializing electricity distribution

To make balancing of demand & supply effective, it is also necessary for the retail electricity distribution network to be modernized in its operation. While this is possible even in a regulated cost-plus model, it has increasingly been seen in the western world that competition amongst multiple distributors is essential. This calls for separation of electricity distribution into two distinct businesses, one operating the ‘wires’ or ‘carrier’ business comprising physical assets like cables, overhead wires, transformers, switching devices & meters, and the other operating the ‘content’ business of supplying electricity over these wires. While ‘wires’ would be a regulated cost-plus monopoly business to avoid asset duplication, supply of retail electricity would see multiple competing operators based on differentiated purchase & sales strategies.

And some recent successes . . .

A partial step towards improving distribution management, already rolled out in some cities of India, is the franchisee model where a private party uses the government utility’s distribution assets on a fee-based model and is further incentivised through better commercial management and customer service. This has reduced technical & commercial losses in many areas and reduced the disincentive to distribution entities that are reluctant to purchase additional bulk power because more supply means more commercial losses.

And therefore . . .

On-demand electricity and energy security therefore calls for :  
  • better forecasting of demand with increasing granularity, supported by commercial mechanisms that generate clear signals for investment in supply as well as delivery resources;
  • putting the onus on electricity regulators to focus on not just ‘low’ tariffs but also on penalizing distribution entities for failure to supply;
  • a problem-solving approach to issues that arise from the need for environment protection, rights of people affected by project development, ease of access for fuel supply and recurring challenges in long-term contracts;
  • a more co-ordinated approach towards procurement of bulk electricity as well as fuel from foreign sources;
  • changes in the approach to transmission planning to accommodate distributed generation;
  • competition in retail supply with efficiently managed common delivery infrastructure, to incentivise better customer service on the one hand and catalyze procurement of additional long-term, medium-term and emergency supplies from bulk assets as well as from distributed generation;

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