What should be checked before proposing a commercial solar-and-battery system for self-consumption at a Colombian business site?（Nov.2024）
A concise pre-screen for EPCs and site managers after November 2024 policy changes: verify policy scope, CREG circulars and temporary procedures, metering and grid-interface boundaries, site and battery engineering requirements, and obtain current legal, network-operator and engineering reviews before commitment.
Question answered
What should be checked before proposing a commercial solar-and-battery system for self-consumption at a Colombian business site?
Market context: 2024-11
Guide
## The practical answer Before proposing a commercial solar-plus-storage system for a Colombian business site, prioritise policy scope and site constraints: confirm whether the intended configuration is for energy used exclusively for own consumption, review the November 2024 policy update and the Ministry statement, identify if remote self-generation or marginal production could apply, and determine whether settlement, reliability-charge or ancillary-services rules may be relevant. Also check CREG’s 2024 circulars describing temporary steps for delivering surplus to the National Interconnected System and note the 1 MW power reference cited on the CREG small-scale page (UPME Resolution 281 of 2015). Require up-to-date legal, network-operator and engineering review before any commitment. ## Quick checklist - Policy review: examine Decree 1406 (22 Nov 2024) and the Ministry statement (26 Nov 2024) and record how they treat self-generation used exclusively for own consumption, remote self-generation and marginal production. - Regulatory follow-up: verify whether CREG has issued or is issuing rules on settlement, participation in the reliability charge, and ancillary-services mechanisms called for by the Ministry statement. - CREG circulars and temporary provisions: check the official CREG index for 2024 circulars that define steps for network operators and large self-generators when surplus delivery to the National Interconnected System is involved. - Size threshold reference: note the 1 MW reference appearing on CREG’s small-scale self-generator page (UPME Resolution 281, 2015) as a screening criterion for further procedural review. - Consumption and metering boundaries: establish precise metering and contractual boundaries for the site (single meter, multiple meters, tenant/owner demarcation) to assess possible regulatory or network implications. - Grid interface and permissions: obtain the network operator’s written requirements for interconnection point, metering, protection relays, anti-islanding, and any temporary surplus delivery steps. - Site engineering checks: roof or ground area, structural capacity, shading, access, cable routing, switchgear space, cooling and fire-safety provisions for battery cabinets. - Battery system considerations: required power and energy capacity, protection and fault response, thermal management, enclosure and fire suppression strategy, maintenance access and spare parts plan. - Commercial and contractual items: ownership model, supply and installation responsibilities, commissioning acceptance tests, O&M scope, insurance and warranties. - Preliminary economic inputs: load profile, tariff structure and demand characteristics for sizing and dispatch modelling (use only for estimation; verify legally and technically). ## When engineering review is essential - Project sizing near or above the 1 MW reference. - Multi-meter or multi-tenant sites, or any arrangement that could involve remote generation or marginal production. - Situations where surplus energy delivery to the grid may be contemplated or where CREG temporary provisions could apply. - Complex structural, fire-safety or thermal-management conditions for battery installations. - Where future settlement, reliability-charge or ancillary-services rules may affect technical or commercial design. Require current legal, network-operator and engineering review before contract signature or construction start.