Energy efficiency and Demand Side Management Program ... - Eskom

More documents

Recommendations

Info

9.2 Appendix 2: Examples effects to the area by replicating similar or different projects. Amount of expenditure on technology between the host and foreign investors regarding the contribution of domestically produced equipment, royalty payments and license fees, imported technical assistance or the need for subsidies and external technical support. Table 7 Guideline on sustainability assessment These examples serve as a tutorial for energy managers, M&V program managers and proposal evaluators alike. It should be possible for all three groups to use the same tables, in order to clearly communicate the aspects to be measured, the indicators for each aspect as well as the specific parameters chosen. Below are some examples for each of the aspects. 9.2.1 Engineering Aspects Table 8 is an example on the evaluation of the installation of variable speed drives (VSD) for a water pumping system. The program evaluation panel determines to evaluate payback time, energy converting ratio, maintenance plan, optimal pump on/off scheduling plan, and the overall energy consumption. These evaluation criteria and the corresponding weighting factors are given to the program manager for program development. Then the program manager follows strictly the evaluation criteria and develops the corresponding energy efficiency measures to meet these criteria. For instance, an optimal pump on/off scheduling plan with a short payback period is chosen together with the VSD installation so as to have a higher score in the evaluation. Engineering aspects Technology Equipment Operation Performance Installation of VSD Life Energy Maintenance Matching of Energy cycle converting system consumption cost; ratio (from electrical to mechanical) components; Items to be Payback Pre: 60% Thorough Optimal Pre: considered while = 3 Post: 90% maintenance scheduling 90MWh/month scoring for the months plan provided to Post: installation of VSD match pump on/off with water demand 60MWh/month Scores (out of 100) 80 70 65 85 75 Weighting factors (in percentage) 10% 10% 10% 20% 50% Subtotal score =80*10%+70*10%+65*10%+85*20%+75*50% Table 8 Example for program evaluation from engineering aspects 26
In the evaluation of a general program, there might be many issues to be considered. Each of these issues can be listed exactly like the ‘Installation of VSD’ in the above table and evaluated in terms of T, E, O, and P related considerations. For instance, the following issues can be included in the evaluation and each of them will be evaluated and scored separately: Scoping report (including problem statement, planned activities, saving calculations) Methodologies (including methods for retrofitting, evaluation, baseline, sampling plan, metering and monitoring) Certification/calibration procedures Quality control Data (from collection, management, to processing) 9.2.2 Environmental Aspects Table 9 is an example to evaluate the replacement of a diesel generator by a wind turbine system and a concentrated solar power (CSP) system in a plant from the environment aspects. Note that the evaluators can further assign separate scores for water and air and the corresponding weighting factors to calculate the total score for water and air. Energy saving and reduction of SOx emission are the primary goals of the program. The evaluation panel thus chooses water and SOx as the main environmental objects to be evaluated. The program manager determines to use the most advanced technology to minimize energy and water usage, and SOx emission; this includes, for example, the installation of VSD for all pumps, the recapturing of SOx, etc. Environmental aspects Technology Equipment Operation Performance Water Cooling and Water Optimal The amount heat transfer circulating control of water technology pumps systems needed daily involved to minimize water usage installed Items considered for Evaluation Pump ratings: No baseline to Pre: 400 scoring in water evaluation criterion: Is 50kW (x 5); compare the tons/day; the All are VSD control Post: 350 technology driven system; tons/day involved most system advanced? developed by Answer: Yes a well‐known ESO Air (SOx only) SOx emission Equipment to Optimal Amount of control absorb SOx is in coordination emission technology place of SOx re‐ into the air adopted processing and production line Items considered for No baseline Absorption rate No baseline to Pre: scoring in SOx evaluation to compare of 40% is verified compare the 100kg/day SOx emission, control Post: however this system; 50kg/day emission system control is the developed by most efficient a well‐known 27
Page 1 and 2: Energy efficiency and Demand Side M
Page 3 and 4: List of tables Table 1 Program eval
Page 5 and 6: from the engineering and environmen
Page 7 and 8: 3) They quantify results and cost
Page 9 and 10: 5.1 Objective The purpose of this g
Page 11 and 12: the energy system could be reached
Page 13 and 14: 6.1.2 Environmental Aspects Environ
Page 15 and 16: It is important to consider the soc
Page 17 and 18: Energy saved (500 MWh) CO2 reductio
Page 19 and 20: eporting period. Details on the fre
Page 21 and 22: 9 Appendix 9.1 Appendix 1: Guidance
Page 23 and 24: waste in a sanitary way. Access to
Page 25: Issues Description Possible paramet
Page 29: 9.2.4 Economic Aspects Table 11 is

Energy efficiency and Demand Side Management Program ... - Eskom

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?