Geothermal Heat Pump
systems – Renewable
energy under your feet
-Roshan Revankar
International Ground Source Heat Pump Association, USA
GSHP System Cooling Concept
Temperature of the earth is relatively constant. When cooling is
needed in our buildings the relatively cool ground easily absorbs
heat removed from our buildings.
Heat
Sink
GSHP System Heating Concept
Warm
Source
Types of Ground Source Heat Pumps
How is it renewable?
Coefficient of
Performance (COP)=
10/2.7=3.7
6 kWh T
Natural Gas
Combined-Cycle
Power Plant
Generation and
Natural Gas Transmission Losses
35-55 %
6 kWh
efficiency
thermal
6 x .55 =
3.3 kWh E
2.7 kWh E
Ground Source
Heat Pump
7.3kWht
Free
Energy
From
Ground
10 kWh T
For Heating
Cooling and
Hot water
US Market
- 29 % of global GSHP installations
- $15.7 billion in 2013 including design,
equipment and installation
18 Buildings
1,360,000 sq ft
2,611 kW
savings
International: Geothermal Heat Pump Systems
• Sweden 9 million people 45,000
GHP year
• S. Korea 123 story LWT 50,000
people downtown
• China Bird's Nest Stadium and
other Olympic venues for the
2008 Olympics
• GSHP in England, Belgium,
France, Sweden, Germany,
Ireland, Romania, Switzerland
Lotte World Tower Seoul S. Korea
Financial Incentives
• Federal level : 30% tax credit for residential and 10% for commercial
buildings.
• State Incentives:
New Mexico
Massachusetts
30% Personal Tax credit
State Rebate Program
$1,500 - $12,500 (size,type,eff.) Max- $9,000
Funding- Renewable Energy Funding- State funds
Trust Fund
Pennsylvania
Industry Recruitment/Support
Oklahoma
Manufacturer loans: $40,000
Green home Loan Program
per job created within 3 years
Max- $15,000
Manufacturer grants: $5,000
3% interest rate for 48 months per job created within 3 years
Funding- American Recovery Loans for geothermal
and Reinvestment Act 2009
systems: $3 per square foot of
space served up to $5
millionFunding- Alternative
Energy Investment Fund
(state issued bonds)
Utility loans and rebates
Illinois
Utility Rebate Program
City Water Light and Power
$500 per ton
Colorado
Utility Rebate Program
Black Hills Energy
$1,200 (14.1 EER and above)
Oklahoma
Utility Loan Program
Oklahoma Municipal Power
Authority
Unsecured Loan: $5,000 $35,000 @1% (3 yrs)
Home Equity Loan: $1,000 $100,000 @0.025% (15 yrs)
Georgia
Utility Loan Program
Tennessee valley authority
Single Unit: up to $10,000
Multiple and Advanced Units:
up to $12,500
@ 6-8% (up to 10 years)
What did China do?
Areas to consider for India
GSHP specific policies
and incentives
Equipment
Market
development
GSHP
Applications
Standards and
Certifications
Thank you!
Rules, Regulations and Policies
•
Renewable Energy Portfolio Standard: require utilities to use or procure renewable energy or
renewable energy credits (RECs) to account for a certain percentage of their retail electricity
sales -- or a certain amount of generating capacity -- according to a specified schedule.
•
•
Energy efficiency resource standards (EERS) are state policies that require utilities to meet
specific targets for energy savings according to a set schedule. EERS policies establish separate
reduction targets for electricity sales, peak electric demand and/or natural gas consumption.
•
•
Eg. 20 % by 2020 in Maryland
30% reduction in annual growth in demand 2013 and beyond in Texas
Energy standards for Public Buildings Many states and local governments, as well as the federal
government, have chosen to lead by example by requiring new government buildings to meet
strict energy standards. Policies designed to encourage the use of on-site renewables generally
establish conditional requirements tied to life-cycle cost analysis.
•
Achieve an 80% reduction from baseline year 2001-02 greenhouse gas emissions by 2050 in North Carolina