According to the existing requirements, this type of analysis can be classified according to its complexity and depth. Here is a more detailed description:

CONSUMER EQUIPMENT INVENTORY

General consumption inventory:

General Energy Accounting of Installed Powers (kW)

By systems (lighting, air conditioning, ...) with a minimum power relative to 15% of the total

Benchmarking

Non-intrusive inspection

The analysis is based on the comparison of the energy consumption of the target building with the consumption of similar buildings located in similar climates. 

CONSUMPTION ANALYSIS

Collection of minimum 12-month energy billing

Record of the main usage habits of the different users of the facility

Estimated energy balance of consumption

Theoretical distribution of the main consumer systems

From energy billing data, optimization of supplies

Energy efficiency proposals

List of measures and general recommendations on energy efficiency applicable to the type and particular characteristics of the building object of the diagnosis

Calculation of energy savings

Estimation of the energy-saving potential (% or kWh), based on the experience of the consultant, reference ratios, studies or other technical documentation

Economic feasibility analysis

An order of magnitude estimate of the necessary investments based on ratios of similar facilities

RENEWABLE ENERGY PROPOSALS

Technical solutions using renewable energy

List of technical solutions available with renewable energies applicable to the type and particular characteristics of the building

Calculation of energy savings

Estimation of the energy-saving potential (% or kWh), based on the experience of the consultant, reference ratios, studies or other technical documentation

Economic feasibility analysis

CONSUMER EQUIPMENT INVENTORY 

Detailed inventory of consumer equipment

Energy Accounting of Consumption associated with own or estimated hours of use (kWh)

By systems (lighting, air conditioning, ...) with a minimum power relative to 10% of the total

By zones with a minimum strength relative to 10% of the total

Walk-through non-intrusive inspection

Analysis to identify not only simple energy improvements but also to guide future detailed audit

Benchmarking Non-intrusive inspection

CONSUMPTION ANALYSIS 

Collection of minimum 12-month energy billing

Record of significant usage habits of the different users of the facility

Evaluation and analysis of the usage habits of the other users of the facility

Carrying out in situ measurements of the other parameters of interest using measuring equipment

The duration of the measurement will be representative of the way the consumer teams work. (Example: instantaneous measurements for calculating the immediate efficiency of a boiler)

Evaluation of the building's thermal envelope through a qualitative analysis through the use of thermography

Analysis of seasonal variations in energy consumption

Establishment of the building's energy balance

From the energy billing data Performance of the tariff optimization of the electricity contract

Detailed study of energy efficiency proposals

General measures and recommendations on energy efficiency applicable to the type and particular characteristics of the building to be audited Calculation of energy savings

Calculation of energy savings in kWh due to the implementation of the improvement measure taking into account Identification of reference energy consumption

Estimation of energy savings based on the characteristics of the new equipment installed

Estimation of cross effects with other energy saving measures

Classification of savings measures according to their economic viability

ZERO COST SAVING MEASURES

PRIORITY SAVINGS MEASURES

COMPLEMENTARY SAVINGS MEASURES

Economic feasibility analysis

Calculation of the necessary investments for the implementation of the energy efficiency proposals

SIMPLE RETURN PERIOD

RENEWABLE ENERGY PROPOSALS

Detailed study of renewable energy proposals

Renewable energy proposals applied to the building typology

Calculation of energy savings

Estimation of energy savings in kWh due to the implementation of the improvement measure taking into account

Identification of reference energy consumption

Estimation of energy savings based on new yields, solar contributions, energy balance from the sale of electricity, etc.

Estimation of cross effects with other energy-saving measures

Economic feasibility analysis

Calculation of the necessary investments for the implementation of the renewable energy proposals 10-year comparative economic study taking into account

SIMPLE RETURN PERIOD 

PROPOSAL FOR TELE-MANAGEMENT AND AUTOMATION SYSTEMS

Consumption measurement

The data obtained with the continuous measuring elements should allow dividing the energy consumption in air conditioning, lighting and other areas

Action on consumer items

Specific solutions can be adopted in the different rooms

ENERGY ACCOUNTING

Inventory of final consumer systems

Preparation of an inventory of energy-consuming systems in the initial consumption scenario and the scenario resulting from the implementation of the proposed improvements, indicating the specific consumption and energy costs associated with each system

Reference values

Control of consumption

Maintenance plan Improvement of environmental quality

CONSUMER EQUIPMENT INVENTORY

Detailed and accurate inventory of consumer equipment

Energy Accounting of Consumption associated with own hours of use (kWh) through an operation questionnaire

By systems (lighting, air conditioning, ...) with a minimum power relative to 5% of the total

By zones with a minimum power relative to 5% of the total tour through the building intrusive inspection

This inspection is based on visual verifications of each of the equipment inventoried in the study of the installed equipment.

Benchmarking Non-intrusive inspection

Data collection of maintenance operations carried out in the building and comparative evaluation with legal minimums, from the point of view of:

Preventive Maintenance

Corrective maintenance

CONSUMPTION ANALYSIS

Collection of minimum 24-month energy billing

Carrying out in situ measurements of the different parameters of interest using measuring equipment

Evaluation of the building's thermal envelope through a qualitative analysis through the use of thermography

The measurement campaign will be exhaustive in order to be able to collect the operation of the consuming equipment over a period of time (example: analysis of the seasonal average performance of a boiler)

Evaluation and analysis of the usage habits of the different users of the facility Verification of the separate meters

By parallel installation of laptops

Analysis of seasonal variations in energy consumption

Establishment of the building's energy balance

Carrying out the distribution of consumption by technologies, systems and equipment present in the building, in order to be able to determine the specific weight of each of them on the total consumption according to the UNE-EN 2165101 standard

Energy simulation of the building's energy consumption through recognized computer software or similar

Estimation of future consumption.

Establishment of consumption baseline according to M&V protocol

The tariff optimization of the electricity contract

Carrying out the tariff optimization of the contract for other fuels

Analysis of the different possibilities of variations in energy prices

Basic engineering of energy efficiency proposals

Development of basic engineering projects

Calculation of energy savings

Accurate calculation of energy savings in kWh due to the implementation of the improvement measure taking into account

Identification of reference energy consumption

Savings calculation: isolated system simulation using a specific program, or calculation tool provided by the manufacturer

Cross effects with other energy-saving measures

Proposal of the most appropriate energy savings verification option

Classification of savings measures according to their economic viability

ZERO COST SAVING MEASURES

RECOMMENDABLE SAVINGS MEASURES

SAVINGS MEASURES

Economic feasibility analysis

Calculation of the necessary investments for the implementation of the energy efficiency proposals: Comparative economic study taking into account (increased cost of energy, CPI, PayBack, other parameters).

RENEWABLE ENERGY PROPOSALS

Basic engineering of renewable energy proposals

Development of basic engineering projects on renewable energy proposals applied to the building typology

Calculation of energy savings

Accurate calculation of energy savings in kWh due to the implementation of the improvement measure taking into account: Identification of reference energy consumption

Savings calculation: isolated system simulation using a specific program, or a calculation tool provided by the manufacturer.

Cross effects with other energy-saving measures

Proposal of the most appropriate energy savings verification option

Economic feasibility analysis

Calculation of the necessary investments for implementing the renewable energy proposals 10-year comparative economic study taking into account (increased cost of energy, IPC, PayBack, other parameters).

PROPOSAL FOR TELE-MANAGEMENT AND AUTOMATION SYSTEMS

Centralized system: A centralized system monitors and records energy consumption and acts on different consumption control elements. Consumption measurement: The data obtained with the continuous measuring elements should allow dividing the energy consumption in air conditioning, lighting and other areas

Action on consumer items

Lighting control

Climate control

Systems adaptable to the availability of sunlight

Control of computer equipment

ENERGY ACCOUNTING

Inventory of final consumer systems

Preparation of an inventory of energy-consuming systems in the initial consumption scenario and the scenario resulting from the implementation of the proposed improvements, indicating the specific consumption and energy costs associated with each system

Reference values

Control of consumption

Maintenance plan Improvement of environmental quality

Comparative study (benchmarking)

PINCH analysis is a strategy for the design of heat exchanger networks. It identifies energy-saving opportunities both in new systems and in the improvement of plants in operation; the latter are called retrofitting studies.

The method focuses on achieving two goals, firstly, economic savings by reducing the consumption of fuels to generate steam (used by hot streams) and by using less electricity when processing cooling water (used by cold streams), it also decreases the emission of CO2 that is considered the leading cause of global warming.

And second, to determine the network of heat exchangers with minimum heat transfer area. It seeks to minimize capital costs, energy costs, and polluting emissions.

We carry out this type of analysis, mostly for the integration of processes in production.

The industry is one of the sectors of society that most need to save energy. In the transport sector, saving fuel is very important. On the other hand, the design of buildings should consider, for example, insulation or the construction of spaces that face south so that on winter days more solar heat reaches the premises, etc. Depending on the area we are analyzing, the savings potential can reach up to 70%. A clear example is lighting. Others would only reach a maximum of 25% as in ventilation systems.

These are merely theoretical values, which have to be revalidated after on-site analysis. Other times, the full potential cannot be exploited due to specific customer needs or simply due to legal issues regarding air quality parameters, for example, in laboratories.

In conclusion, only after analyzing the real situation in which the company finds itself, real savings potentials can be identified.

We verify these savings according to the guidelines of different methodologies such as EVO protocols, ASHRAE guides, or the new international standard ISO 50015.