solar on track for pbi net metering & backup power · 2017-07-31 · ©2003 all information is...

©2003 All information is the property of WorldWater and Power Corporation

Solar on Track for PBI Net Metering & Backup

PowerSeptember 2006

SOLAR CONFERENCE 2006San Diego, CA

Larry SlominskiDirector – Western Regional

760-505-6822 / [email protected]


Agenda• Market Trends toward Large Scale, Ground

Mount Solar• Solar on Track – Structure design

development and the move to Tracking Designs

• Performance Based Incentives • Backup Power - Real Value for Water

Districts and Commercial Farms


Solar Module Structure• Architecture & Resource Impact

– “Flat” or Low Slope• Roof Top, Covered Parking

– Fixed Tilt Slope (typ South Facing)– Single-Axis Tracking– Dual Axis Tracking

• Structure Design– “Uni-Strut”– Light Gauge Formed Steel– Single-Axis Tracking– Dual Axis Tracking “Concentrators”


Roof Mount – Flat - Insulating

Independent Energy Solutions


Shade Structures

M Bar C

Uni-Solar


Building Integrated PV

Uni-Solar


Ground Mount FT Structure

2" Schedule 40Pipe

Solar Mount Rail

PV Modules

Leg FoundationSee Detail B

Angle Bracket(See Detail A)

1:2 Slope

55"(Typ.)

24"

2" SquareAluminum Truss


Roof Mount – Tilt - Ballasted

Sun-link


CERRO COSO COLLEGE– RIDGECREST, California– 1MW photovoltaic system


SELEY RANCHES– BORREGO SPRINGS, CA– 265 kW grid-tied water pumping system for citrus orchard


265 kWdc PV Array

• 1674 PV Modules(BP3160 Q)

• Ground MountStructure

• 225 kW Inverter

• 2 SwitchingCombiner Boxes


Ground Mount – Fixed Tilt

Tucson Electric


Fixed Tilt with ShadeLehr Bros, Edison, CA. Hydracooler for potato processing facility (350HP compressor)


Avocado Ranch, Fallbrook, CA


Avocado RanchFallbrook, CA

(SDGE Reconnection, County Permitting, Reversed Slope)


Single Axis Tracking

E

Powerlight

Potentially >30% Annual Energy Production


Single Axis Tracker - Tilted

Arizona Public Service


Dual Axis Trackers


Resource, Value and Costs of Structure Design Options

• Fixed Tilt – Horizontal• Fixed Tilt - Latitude• Single-Axis – Horizontal (E-W)• Single-Axis – Lat Tilt • Dual Axis Tracking


Resource vs Tracking System1-Axis Tracking, Horizontal is Least Cost for Arizona (APS)

O&M Costs for 1 – Axis Tracking, Horizontal was 0.35% of Installed Cost not including inverter rebuild/replacement (APS)

Capital Costs of 1 –Axis Tracking, Horizontal Systems on par with fixed tilt – especially with High Wind Stowing

Bakersfield, CA APS Data* APS DataAvg. Energy % Increase % Increase Actual ActualkWh/m2/day Over Hor. Over Lat Tilt % vs. Lat Tilt % vs Hor

FT- Horizontal 5.19 NA NA NAFT - Lat Tilt 5.6 8% NA NA 12%1- Axis Track - Hor. 7.11 37% 27% 23% 37%1- Axis Track Lat Tilt 7.47 44% 33% 37% 53%2 - Axis Track 7.74 48% 38%

* Phoenix. Source: PV Power Plant Experience at APS, A 5 - Year Assessment 1994.

Solar Geometry - Calc'd


Performance Based Incentives• $/Wp• $/kWh over 5 years• Energy Resource, Degradation, Reliability• Purchase Influences

– Power Purchase Agreements– Warranties


Solar with Backup Power• Backup with No Batteries• DC Direct Drive of VFD for Pump Motors

and Power Conditioning for Ancillary Loads

• Idyllwild Water District Case Study


PV System – Net Metering

Inverter

Combiner Boxes

DC Disconnect

AC Disconnect

Transformer(480/4160 V)

Gen.Meter(Utility)

Modules

PV Array

Net Meter

AC Loads

ACDisc.

PV Site Equipment

Transformer(4160/480 V)

Distr.Panel


PV Systems w/Aquamax Backup Power

AC Loads

Inverter

Power Transfer Controls

DC Disconnect

AC Disconnect

Transformer

Gen.Meter(Utility)

PV Array

Net Meter

AC Motor (pumps,compressors)

DCAC

Variable Frequency Drive

Other DC Loads(sustainable UPS)

Control

AC Non-Motor AC Loads (Controls, etc.)


PV Blending ApplicationHigh Yield Solar Pumping Systems

*AquaMax™- WorldWater and Power


Array and Pump Loads

800’ Distancefrom PV to Pump.

Placement of array to minimize area impact


Transformer, Inverter, Disconnects,Switching Combiner Boxes


Idylwild Water District


Idyllwild Water District


IWD SCB, Inverter, Disconnects


Switching Combiner Box


VFD and Pump Motor Controls


WW&P Sustainable Solar Power Systems

(Daytime Backup Power)• 50 and 100 kW PV Systems • Single-Axis Ground Mount Tracking• Stowable• Backup Power for Motor Loads, Controls,

Ancillary Loads


WW&P Aquamax Backup Power Systems Services

• 50 - 100 hp Packages• Design – Motor Drive & Ancellary Loads• Aquamax Component Supply• Construction Technical Support• Commissioning


WorldWater and Power Corp.Technologically in a Class by Itself

• Power up to 600 hp directly from solar or from grid/solar in combination

• Automatically switch system over to grid-independent solar power

– WorldWater holds two U.S. patents (with three more patents pending).


WorldWater & Power Corp.• International Full-Service Solar Energy and

Water Management Company

• Founded in 1984 Based on Solar Electric Direct Drive Motor Systems – Up to 600 hp

• Specialize in Agriculture, Municipal Water Supply and Treatment, Electric Utilities


WORLDWATER…THE RIGHT IDEA

WorldWater is the Right Idea for:• Agriculture • Wineries • Utility districts• Water districts • MunicipalitiesApplications Include:• Irrigation • Chilling and refrigeration• Sewage treatment plants • HVAC • Water delivery• Utility Scale Power Systems • 3 Ph Motor Power


THANK YOU


Capital Resources• $ 100 M Captive Fund to Finance Long Term Power

Purchase Agreements• Prominent, Private Equity Funds are taking lead• $ 10 M under PPA contract for four projects• Fund coordinated by Chatham Group who have large

power plant financing experience• WW&P has extensive financial modeling tools and

documents related to power purchase, equipment supply and O&M agreements

• Teaming arrangements in place with constructors of large power plants.


Design/Construction Exp.• Technology assessment of PV systems for specific

applications including:– Mono & poly crystalline, amorphous silicon, and concentrators– Array structure design assessment for fixed and tracking designs– Inverters and VFDs– Electrical wiring architecture for large power stations

• Designed & constructed more than 4 MW of PV over 10 projects for public/private customers.

• Managed complicated permitting and compliance issues• Developed and fielded efficient ground mount structure

design in .3 and 1 MW.• Strong relationships with industry leading equipment

suppliers


Regulatory/Incentive Programs• WW&P secures and manages state rebate

program funding for WW&P projects in CA/NJ.• WW&P has over 20 years experience with

utilities in AZ on PV applications development• WW&P knowledgeable in NEC code and

associated National and State agency standards for PV product and applications, including the National Renewable Energy Lab, Sandia National Labs, the CA Energy Commission


Renewable Energy Credits (RECs)

• WW&P purchases and sells RECs in NJ and CA on our own projects

• WW&P tracks development of the REC market.


•LEHR BROTHERS, INC•EDISON, CA. •Hydracooler for potato processing facility (350HP compressor)


CERRO COSO COLLEGE– RIDGECREST, California– 1MW photovoltaic system


IDYLLWILD WATER DISTRICTIDYLLWILD, CA44.1 kWdc PV Power and Backup Power System


ATLANTIC COUNTY UTILITIES AUTHORITY– Egg Harbor Township, NJ– 500 kW PV Power Station


FARM ACW – 1 MWacFallbrook, CA

(SDGE Reconnection, County Permitting, Reversed Slope)


Other Projects• 273 kW Tree Nursery – Borrego Springs, CA

– Fixed Tilt Elevated Shade and Solar Electricity• 56 kW Center for Irrigation

Technology – Fresno, CA• 47 kW San Benito, Texas

– Single-axis tracking 125 mph• 39 kW Custom Residential


• Real time web-based monitoring & alerts• Revenue grade metering• Consolidation with utility data• Quarterly reports

Performance Monitoring


Financial Modeling & Services• Direct Purchase, Rebate Management,

Tax Benefits and Impacts• True Leases • Power Purchase Agreements

– Long Term – Fixed Price– Variable Price


• Customer pays only for electricity service

• Fixes energy costs for up to 25 years

• System is owned by LLC

• System is placed on customer’s property

• Customer provides owner access

• Example PPA Agreement and Cash Flows

Power Purchase Agreement Terms


1. Solar Electric Power Systems Training2. Site and Resource Assessment3. Load Analysis4. Energy Bill Analysis5. Rate Analysis and Optimization6. Solar Sizing, Specificaitions, Ratings7. Performance Analysis8. Financial Performance9. Funding10. Procurement Specifications

Project Development Services


WORLDWATER AND POWERThe Right Thing to Do

THANK YOU

solar on track for pbi net metering & backup power · 2017-07-31 · ©2003 all information is...

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