Define the need and request a site specific design; panels, backup and grid connection answer different questions.
Explain the problem you want to solve
Start with a concrete statement: supplying a location without confirmed service, reducing purchased electricity or maintaining selected functions during interruptions. Those goals need different assessments. UPME brings together generation and self generation information, but national context cannot calculate output for an individual parcel. Our editorial proposal turns the goal into an equipment, schedule and priorities brief. Do not buy a package solely for its advertised panel count. Ask the professional which inputs are needed and which results can be estimated. If grid availability is unknown, keep that enquiry open rather than assuming solar removes every dependency. Distinguish weekend use from permanent operation as well. The initial result should explain why the system is wanted and what conditions make the investment useful, avoiding discussion focused only on technology or savings promises unrelated to the actual operating need.
Supply demand with schedules and priorities
Prepare an equipment list using available information and identify simultaneous versus separate use. Ask the designer to distinguish the quantities needed for sizing without improvising capacities or standard consumption here. Our record separates essential functions from loads that could be deferred where appropriate to design. Mark new equipment as a changed brief scenario. EPM's electricity channel keeps service enquiry separate where its coverage applies; it cannot replace assessment of the proposed system. Avoid copying another home's bill as proof of your demand. It may inform discussion, but the actual operation needs identified data and assumptions. Request an understandable explanation of the usage profile addressed by the offer. You can then detect whether an attractive price depends on removing equipment you need or assuming schedules incompatible with the intended activity on the parcel and the way the home would be occupied.
Define the grid relationship before discussing exports
Ask whether the proposal operates connected to the grid, isolated or through a configuration combining functions, and have the professional explain its case specific meaning. CREG Resolution 174 of 2021 regulates self generation and connection within its scope, and its text incorporates later amendments including 2026 changes. Do not apply an old explanation as though every scenario follows the same route. Our editorial review identifies the operator, current procedure and necessary evidence where relevant. Do not promise export sales, tariffs or returns because another user achieved them. Where the offer assumes economic use of electricity, request separate assumptions and relevant institutional responses. Without confirmation, income remains pending rather than guaranteed money paying for the project. The purchase decision needs to distinguish design dependencies from outside actions or conditions still unresolved for the proposed system and connection arrangement.
Request assessment of the site and installation
Provide location and background so the professional can assess space, exposure, shading and support conditions within the assignment. UPME generation information supplies institutional context rather than a measurement performed on your land. Our record asks what was observed, what was modelled and which assumptions could change. For equipment on a structure, coordinate the relevant review; for ground installation, ask how it relates to the rest of the project. Do not cut vegetation or alter land to improve a commercial estimate without reviewing applicable permissions and consequences. Ask about assembly and maintenance access instead of choosing a position merely for its appearance in an image. Assessment should identify limits and further tasks rather than offer unsupported fixed production for every month. Compare proposals using the same brief and site inputs, clarifying method and scope differences before selecting a supplier for the system.
Ask what operates during an interruption
If continuity is the goal, request an explanation of actual system behaviour when grid supply fails and which equipment would be served. Installed panels should not be used as a synonym for autonomy. Our editorial review asks for an interruption scenario with defined loads, professionally supportable duration and recovery or replenishment conditions. Distinguish an estimate under assumptions from a contractual guarantee requiring its own review. If batteries or other components are included, ask about operation, maintenance and usage limits without this article prescribing an electrical configuration. Connection regulation and operator service require scenario specific review; a supplier cannot resolve them with one broad phrase. For occasional occupancy, ask what attention the system needs while the property is empty. Useful answers explain the backup function being purchased and the remaining dependency rather than relying on a commercial label promising complete independence for every circumstance.
Compare costs and savings with visible assumptions
Prepare initial investment, operation, maintenance and replacements the supplier can describe. Our editorial comparison separates estimated savings, pending income and continuity benefits because they are different arguments. Invent neither future tariffs nor a universal payback period. Identify the electricity price, usage profile and performance assumed in an estimate and supporting documents. CREG regulates commercial aspects within the applicable scope; effective value for your case needs verified conditions. If the result looks attractive only with maximum output, minimum costs and no replacement, request more useful scenarios. Compare an alternative without the system, using confirmed service where relevant, under the same brief. The goal is not a technological winner but a decision about whether the proposal solves your need at an understandable cost. Keep unknown anything nobody can yet price or justify rather than filling the gap with a convenient number for the comparison.
Agree deliverables, checks and aftercare
Request a proposal identifying equipment, installation scope, responsibilities, documentation and handover conditions. Our record asks the professional which checks will be performed and what operating and maintenance information will be supplied without making the buyer execute technical tests. Clarify who handles enquiries, commercial exclusions and legal review needed for commitments and guarantees. Where an operator response forms part of the project, record its actual status and who manages pending work. EPM's electricity process can provide an institutional channel where relevant, while supplier handover concerns its own scope. Retain versions and brief changes so verification does not address another configuration. Plan maintenance access and document retention as well. An organised close identifies what has been received and what remains before intended use rather than inferring safety or compliance from one photograph of equipment installed on the property.
Use a case to uncover the decisive dependency
Imagine a buyer seeking remote work during rural visits and receiving an offer described as autonomy. Once schedules are explained, the quotation proves silent about interruption operation and attention during absence. Our response requests a revised scope for that scenario, alongside enquiry into actual service and relevant regulatory relationships. This does not declare the system unsuitable; it identifies an unanswered question. Alternatives might adjust loads, commission another configuration or reconsider the goal following professional assessment. If the revised proposal exceeds budget, that result informs the land purchase. Solar energy may form part of a solution, but a broad label cannot demonstrate suitability for every need. Close the decision with the brief, assumptions, documents and outstanding matters so a savings promise does not distract from the particular function that needs maintaining for the intended activity on the parcel.
Fictional daily load profile before solar design
Arithmetic example rather than panel, battery or payback sizing. Constant power is assumed for the stated hours; losses, simultaneity, starting loads and local irradiation are excluded.
| Assumed load | Power × time | Energy and missing information |
|---|---|---|
| Four lights | 4 × 10 W × 5 hours/day. Assumed evening use. | 200 Wh/day. Verify equipment and timing; night use matters when assessing storage. |
| Refrigeration | Assumed average 60 W × 24 hours/day. This is neither starting power nor a real appliance measurement. | 1,440 Wh/day. Request measured consumption or relevant appliance and operating information. |
| Router | 12 W × 8 hours/day, as a hypothetical communication need. | 96 Wh/day. Check whether service is needed at other times and which additional equipment is required. |
| Pump | 600 W × 0.5 hours/day. Starting loads and simultaneous use have not been characterised. | 300 Wh/day. The specialist must assess power and starting behaviour as well as total energy. |
| Partial total | 200 + 1,440 + 96 + 300 = 2,036 Wh/day = 2.036 kWh/day under these assumptions. | Take the profile and timing to the designer. Request site, losses, backup, connection and cost assessment before selecting a system. |
Sources & bibliography
Read the full document, its date, amendments and scope. The editorial review date describes this page; it does not establish an authorisation or a specific answer about your plot or financing.
- 01UPME: generación de energía eléctricawww.upme.gov.co · Institutional information and self-generation portal; national data do not establish an individual property's generation output.
- 02CREG: Resolución 174 de 2021, texto con modificacionesgestornormativo.creg.gov.co · Self-generation and connection within the provisions' scope; the text includes 2026 amendments. Surplus generation, tariffs or a universal return are not promised.
- 03EPM: energía para constructor y urbanizadorwww.epm.com.co · Official information on connection applications and support for electricity projects; scope depends on coverage and the provider's response.