Power that cannot connect to the grid is just expensive scrap metal. The connection agreement with EVN is the technical-legal gate deciding whether a project reaches commercial operation, and the bottleneck delaying many solar and wind projects’ COD by months. Knowing the process keeps owners proactive instead of waiting passively.
The connection process: 5 steps
One, connection registration: the owner files with the grid operator (the National Power Transmission Corporation or the regional Power Corporation, depending on voltage level). Two, the connection agreement: both sides agree on the connection scheme — connection point, voltage level, capacity, schedule. Three, design and build the connection grid section: the owner invests in the line/substation segment to the connection point per the agreement. Four, technical acceptance and testing: protection systems, metering, SCADA checks. Five, sign the power purchase agreement (PPA) with the Electricity Power Trading Company (EPTC) under EVN and start commercial generation.
Actual timing at each step depends on regional grid conditions — areas with spare capacity move fast; congested areas may wait for grid upgrades.
The three most common bottlenecks
One, grid congestion: many projects connecting in one area exhaust grid capacity — EVN refuses or requires waiting for upgrades. Two, cost disputes: who pays for shared substation and line upgrades — negotiate clearly in the connection agreement to avoid later disputes. Three, curtailment: when congested, EVN dispatch cuts output — the PPA must define compensation for unplanned curtailment.
Experience: survey connection feasibility at site selection, engage the regional grid operator early, and build curtailment protection into the PPA — don’t wait until construction is done to worry about connection.
Key contents of the connection agreement
The agreement must specify: connection point and voltage level, maximum connection capacity, each party’s schedule, investment responsibility split (which segments the owner vs EVN builds), technical standards for protection and metering, and remedies for schedule delays. Verbal promises from power officials are worthless in disputes — only the signed document counts.
This article has been quality-reviewed by the FLAW AI Legal Council.
Frequently Asked Questions
What are the steps to connect solar or wind to the EVN grid?
Five steps: register connection with the grid operator; sign the connection agreement (point, voltage, capacity, schedule); build the connection grid section; technical acceptance and testing; sign the PPA with EPTC under EVN and start commercial generation. Congested grid areas take much longer.
Who pays for connection lines and substations?
Owners typically invest in the line/substation segment to the connection point per the agreement. Shared grid upgrades (EVN substations, lines) need clear negotiation in the connection agreement — a common dispute bottleneck to settle before construction.
Is there compensation for EVN curtailment?
It depends on the PPA. When congested, EVN dispatch cuts output; the PPA should define compensation for unplanned curtailment. This must be negotiated at PPA signing — it cannot be claimed after the fact.