City of Ames Electric. City of Ames Electric. Smart Energy. Services. Donald Kom Director

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1 City of Ames Electric City of Ames Electric Services Smart Energy Donald Kom Director

2 City of Ames City of Ames Electric Services

3 City of Ames City of Ames Electric Services Electric Services has the ability to self- generate 153 MW of electricity. In addition we have 30 MW of wind. All time high peak demand for electricity of MW occurred on July 31, Ames demand for electricity grows historically at an annual rate of 3.5%.

4 Electric Production Electric Production Ames Power Plant Generating unit 7 (1967) 38 MW. Generating unit 8 (1982) 70 MW. Burn coal and RDF. Gas turbine 1 (1972) 18 MW. Gas turbine 2 (2005) 27 MW. Burn low sulfur diesel fuel. GardenWind (2009) 30 MW. Green energy produced from wind

5 Electric Distribution Electric Distribution Distribution is responsible for the installation of lines and equipment to distribute electricity to customers. Extending lines to new customers, construction of substation improvements, and street light installation. 3,378 transformers. 461 miles of power lines. Fuses, breakers, lightening arrestors. On the job 24/7, 365 days a year.

6 Energy and Capacity kwh is energy Electricity demanded over time KW is capacity Instantaneous amount of electricity demanded by a customer

7 Bill Components KWh, KW, Service Charge, ECA Residential kwh, service charge, ECA Small commercial kwh, service charge, ECA Large commercial kwh, KW, service charge, ECA Industrial kwh, KW, service charge, ECA Large commercial and industrial also have a ratchet Highest demand sets level of monthly demand charges If set in summer customer billed 75% of high demand or actual, whichever is highest for the next 11 months If set in winter customer billed 60% of high demand, or actual, whichever is highest for the next 11 months A high demand can affect bills year round Important to lower demand to reduce customer costs

8 Bill Examples

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12 Energy Services Energy Services

13 Electric Administration Electric Administration Energy Services Account Management. Customer interface. Assist customer with energy issues. Marketing and PR. Smart Energy. The Energy Guy.

14 Smart Energy Smart Energy Education. Power Watch. Alternative/Renewable Energy. Green Choices. Load Management. Prime Time Power. Power Factor Correction Rebate. Demand Side Management. Res Air Conditioner Rebate. Res Energy Audit. Res Weatherization. Res Lighting Rebate. Res New Construction Rebate. Efficient Appliance Rebate. Commercial Lighting Rebate. Commercial Audit. Commercial Custom Rebate. kwh Saved KW Saved Tons CO2 Removed Program Cost Avoided Cost Year 1 518,789 3,600* 425 $382,386 $4,297,115 Year 2 2,560,618 1,533 2,100 $603,856 $1,873,249 Year 3 2,134,937 1,463 1,751 $807,221 $1,676,791 Year 4 723, $412,779 $627,282 Total 5,937,981 7,151 4,869 $2,206,242 $8,474,437 * Includes 3,000 MW from Prime Time Power

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20 AC Rebate 1.5M kwh, 2 MW, $2.1M avoided Year 1 avg SEER = Year 4 avg SEER = Good savings Program is successful in driving efficiencies up Dealers promote this program

21 Appliance Rebate 198,000 kwh,.4 MW, $449,000 avoided Year 1 participants = 673 Year 3 participants = 1,258 (projected) Not a lot of savings but very popular Customers asked for this program Rebate breakdown: 26% Dishwashers 3% Freezers 31% Refrigerators 40% Washing Machines

22 Energy Audit 203,000 kwh, 139 KW, $157,000 avoided Year 1 participants = 62 Year 4 participants = 136 (projected) Each customer is given CFL s Program growing slowly but under utilized 21,263 residential meters

23 Commercial Lighting Rebate 3M kwh, 895 KW, $1.2M avoided Year 1 participants = 12 Year 2 participants = 87 Year 3 participants = 63 Year 4 participants = 42 (projected) Great bang for our buck Good kwh and KW savings Why the drop off? Troubling trend Economic downturn?

24 Smart Energy Performance Cost to build 1 KW generation = $1,000 This is our utility s avoided cost Cost to save 1 KW energy = $531 Drops to $309 per KW with PTP included Money well spent 21% of customers have participated Pretty good for young program More participation needed 4 MW a little below target (1 MW Vs 1.2 MW) Goal is 24 MW (7 MW base load, 17 MW peak)

25 Where do we go from here? Budget increased to $1M next fiscal year Reevaluate programs Do away with underperformers? Channel dollars to successful programs? More advertising Need to build participation levels People don t yet know about Smart Energy Sustainability Task Force can help

26 Questions?