Colorado Thermal Energy Standard

A Global View

By

Paul Bony

Director of Western Region Market Development

ClimateMaster

June 28, 2012

Public Policy & the Environment

Why do we have environmental regulations?– Local Air quality (Smog)– Regional Environmental Problems

• Acid rain

– Global Environmental Problems• Global warming, climate change, climate

weirdness

Public Policy & the Environment

Why are electric utilities the primary target of efficiency and renewable energy regulations & policies?

• Public interest theory (regulated monopoly) State regulation is in the public interest as it makes consumers better off than unregulated commerce

– “Focused” target – with “easy” oversight– Imbedded financing solution

• Rates

Public Policy & the Environment

Ending coal power as a climate change initiative?– Many utilities and the coal mining industry have long fought

emissions rules regarding coal generation, They are not winning the fight.

– Utilities are being forced by regulators to retrofit coal generators with new control equipment, or retire them.

– Since January 2010, 112 coal plants totaling more than 42,800 megawatts have, or soon will be retired.

Carbon offsets from renewable thermal energy can provide an alternative (and lower cost) approach to meeting carbon reduction goals

Public Policy & the Environment

Renewable generation accounted for almost half of the estimated 208 gigawatts (GW) of electric capacity added globally during 2011. (Global Trends in Renewable Energy Investment 2012, United Nations Energy Project)

Renewables could supply 80% of total U.S. electricity generation by 2050, according to a new study by the National Renewable Energy Laboratory.

Is the Job Done?

There is a great opportunity to obtain cost effective carbon reductions from fossil fuel thermal end uses.– If the carbon emissions from burning fossil

fuels to generate electricity are not acceptable, why should we allow the burning of fossil fuels to heat buildings and water when better, low carbon, technologies are available?

Buildings Dominate U.S. Energy Use and Carbon Emissions

with Heating, Cooling, and Water Heating being the Largest

Contributors

Thermal Loads

Heating 9.2%

Cooling 4.3%

Hot Water 3.8%

Total 17.3%

~ 20% of all U.S. Carbon Emissions

Simple Concept

Water moves energy better than air doesWater in the ground provides renewable energy

8

Typical water-refrigerant Heat Exchanger used in most GSHP equipment

11 kWh to kWh to power the power the systemsystem

3-5 3-5 kWh of kWh of geothermal energy geothermal energy moved from the earthmoved from the earth

4-64-6 kWh kWh heat heat

equivalent equivalent delivereddelivered

Geothermal Heat Pumps

400-600% Efficient

Geothermal Heat Pumps

Conventional HVAC Geothermal HVAC

14.6 In

9.5 Out

COPs of 6+ are possible with advanced equipment & design

Geothermal Heat Pumps

The difference in the before and after system efficiency = carbon emissions savings.

300,000 GSHP retrofits could equal the carbon emissions of a 500 mW coal plant (which serves 500,000 homes!)

Geothermal Heat Pumps

Geothermal heat pumps produce the lowest carbon dioxide emissions, including all source effects, of all available space-conditioning technologies(EPA, 1993).

A GeoExchange systems saves more CO2 than an equivalent investment in solar PV.– Based on DMEA’s electric energy carbon load

and weather data.

Geothermal Heat Pumpsare the Most Efficient way to Convert

Green Energy into Heating, Cooling and Water

Heating

Making the most effective use of this precious resource

No carbon electricity = carbon free heating, cooling & water heating

Geothermal For Utilities

Geothermal heat pumps offer utilities an excellent tool to:– Obtain significant peak load reduction

– Improve load factor

– Generate large carbon emission reductions

– Meet efficiency, renewable energy and customer satisfaction goals

– With out putting pressure on electric rates

– In fact, they can make rates go down

Geothermal For Utilities

Clipping the Peak

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10

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15

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75 85 95 105

7.5 Ton 11 EER

10 Ton 11 EER

15 Ton 10.6 EER

20 Ton 10 EER

Air Source

Air Source A/C Vs. Ground Source Efficiency

Outdoor Temperature

Energy EfficiencyEER

Ground Source – 14-15 EER

Air Source – 10-11 EER

Air Source – 9-10 EER

Air Source 8-9 EER

Demand Impacts

4 ton Geo vs. Conventional –Home Peaks – Denver Colorado

Avg. of 2.1kw savings

Peak Demand Impacts

Source- Scientific American

Denver CO eQuest whole houseHVAC System

Peak Time1/2/10 19:002/5/10 20:003/30/10 18:004/26/10 18:005/31/10 18:006/30/10 18:007/26/10 18:008/16/10 18:009/2/10 18:00

10/16/10 18:0011/6/10 17:0012/8/10 19:00

PV system electric output

Leveraging Federal Incentives

Fed tax credits cover 1/3 of the cost of a residential Geo installation.

Federal tax code (credit) covers 10% of commercial Geo installations, plus provides accelerated depreciation (5 years) plus efficient building tax credits ($1.50/sq. ft.)– covering over ½ the total installation cost (and all

of the incremental cost).– Paybacks under 3 years! (some first year)

Net Residential Energy Impacts GHP Retrofit from N Gas

5,086 increase in kWh (base is 14,511 kWh) total kWh = 19,597

1,479 decrease in Therms of N Gas– 147,900,000 Btu * 45% heat rate = 19,597 kWh

generation possible with the gas saved – Typical thermal efficiency for combined cycle

electrical generators is 56 – 60%.

Equals more (net) kWh generation than the home uses.

But Colorado Efficiency Policy

Penalizes Geo systems– Requires net decrease in kW demand (does not

specify Summer Peak)– But also requires 5% decrease in kWh sales

Ignores the fact that GHPs cut expensive Summer peak demand and free up enough natural gas to generate home’s entire electric use for a year!

The UK Has it Right

Increasing renewable heat is key to the UK meeting its renewable energy targets, reducing carbon emissions, ensuring energy security and helping to build a low carbon economy.

They have a Renewable Heat Incentive, making renewable heat an environmentally sound decision, and financially attractive. This effort is targeted at driving the increased use of renewables, stimulating the renewables industry, encourage further innovation and ultimately, bring down the cost of renewable heating.

Maryland Has it Right

HB 1186 was signed into law on May 22, 2012, the day that Maryland became the first state in the country to make the energy generated by geothermal heating and Cooling (GHC) technologies eligible for the Renewable Portfolio Standard (RPS) as a Tier 1 renewable source.

Home owners will be eligible to receive Renewable Energy Credits (RECs) for GHC systems that are commissioned on or after January 1, 2013.

Maryland Has it Right

Wyandotte Municipal Services Has it Right

The Wyandotte, Michigan City Council approved the creation of a geothermal utility. The general manager of Wyandotte Municipal Services said there are many reasons to be excited about the introduction of geothermal energy, including its heating and cooling efficiency, its affordability, because geothermal helps Wyandotte Municipal Services improve the operation of the electric system and reduce power supply costs, and benefits to the environment. (August 2010)

New York City Has it Right

Use of renewable energy will help New York City reduce fossil fuel dependence, improve air quality, reduce adverse public health impacts from poor air quality and help diversify the suite of renewable energy sources used and conserve energy.

Geothermal technologies represent a major opportunity for reducing national energy use, greenhouse gases and pollution, while delivering comfort, reliability and significant fuel cost savings to building and homeowners.

New York City Has it Right

Therefore, the Council finds that it is in the best interests of the City to explore measures that would facilitate and increase the use of geothermal energy sources in New York City.

Zero Energy Building Proponents Have it Right

ZEBs as buildings that use no more energy over the course of the year than they produce from on-site renewable sources.– You can not produce natural gas, oil, or propane on site.

The efficiency levels needed for ZEBs are readily obtainable, with current technology and at reasonable incremental costs, for many common building types. (New Buildings Institute, March 2012)

Colorado Has an Excellent Opportunity to Get it Right!

With Thermal Energy Standard Legislation Yes We Can!

Thank You For Your Attention!Questions?

Paul Bony

paulsbony@yahoo.com

970-249-8476

If you ever need a hand you can reach me at:

Elephants In the Room

Bias towards Natural Gas– Fuel Switching

• Why is converting electricity to gas & PV good, while switching gas to 500% efficient electricity powered by PV, wind & other renewables bad?

– Shale Gas• Is there really a 120 year supply at today’s prices?

– Gas CO2 emissions• Burning natural gas in furnaces and water heaters generates

CO2 emissions, as does producing Natural Gas. Why does policy ignore this fact?

Elephants In the Room

PV bias – Even if every home had PV on the roof, where

would heating energy come from?– Why ignore the benefit of combining

efficiency, renewable thermal energy and PV electricity?

• Net Zero or Near Zero buildings

Elephants In the Room

Financial Barriers– PACE

– On-Bill Financing/Collection

– Utility Loop Ownership• Recognize DSM (Peak reduction & off-peak sales) value

Capturing the Attention of Both the Public & Policy Makers

Breaking Through the Conventional HVAC Market Mind Set