Small Wind and Solar Systems. Kristi Robinson Steele-Waseca Cooperative Electric. As of May 10, 2009. 5. 4. 3. 2. 1. Midwest ISO States with Renewable Mandates. 5. WIND RESOURCE POTENTIAL. 2. 4. 3. 1. FAIR. GOOD. EXCELLENT. OUTSTANDING. MARGINAL.
Small Wind and Solar Systems
Steele-Waseca Cooperative Electric
As of May 10, 2009
Midwest ISO States with Renewable Mandates
WIND RESOURCE POTENTIAL
50 Meter Wind Resource Map DOE - EERE
~$23 per day
Average Yearly Production:
SOLAR PHOTOVOLTAIC RESOURCE POTENTIAL
5 -6 kWh/m2/day
~$5 per day
Average kWh per Day
~$1 per day
Federal Renewable Programs
State Renewable Programs
Wind turbines < 40 KW qualify for net metering.
Purchasing utility basically by the power that goes back on the distribution grid at retail rate.
SWCE 2010 Buy Back Rates
Single Phase Units: $0.1161/kWh
Three Phase Units: $0.1107/kWh
State Sales Tax Exemption:
Wind and Solar systems materials are exempt from sales tax.
Includes materials used to manufacture, construct, maintain and repair renewable systems
State Property Tax Exemption:
Wind and Solar systems are exempt from property tax, (land the system is on is still taxable ).
However small production tax does exist if system is greater than 250 KW nameplate.
State Solar Rebate:
Unknown availability for 2010. Currently a waiting list for Federal Funds.
Costs and Benefits
In SWCE Territory – 39 KW Wind Turbine
Upfront Cost: (Turbine, Foundation, Labor etc)~$120,000
Average Yearly Production: 44,000 kWh~ $ 4,115 per year
Insurance and Maintenance~ $ 750 per year
Photovoltaic System ( 2 KW System)*
Upfront Cost: (Panels, Inverter, Labor etc)~$ 18,000
Projected Average Yearly Production: 3,000 kWh~ $ 315 per year
Insurance and Maintenance~ $ 100 per year
*Based on best information available – not SWCE numbers
Solar Calculator: Findsolar.com
Capacity factor for solar and wind is approximately 15%
Interconnecting a Wind or Solar System
to SWCE’s Grid
Fill out SWCE Application for Interconnection
$250 non-refundable application fee for systems greater than 20 kW
Site Visit and Engineering Studies
On site meeting with system owner and electrician
3) Contracts Signed
4) Construction and Interconnection
SWCE personnel will perform necessary changes to the distribution system and
metering for the wind or solar system.
5) Final Collection of Costs
Final billing of actual costs accrued by SWCE are billed out less the deposit.
Three Important Points
$300,000 in liability insurance per turbine – SWCE must have proof of insurance
Visible, accessible disconnect switch – SWCE has access to wind or solar system
Do No Harm Cause
SWCE will assist our members with interconnecting
to the grid, but…
Concentrate on low cost energy efficiency methods first!