Attachment 

CLOVER PRESENTATION 
Clover Power Statio

Welcome 

to the 
How It All Started

A brief history of the Clover Power Station

♣In 1989, Old Dominion Electric 

Cooperative and Dominion team up to construct Clover Power Station

♣In February 1992 Construction Comm♣Unit #1 began commercial operations 

fall of 1995 and Unit #2 in the spring o1996.
How It All Works

♣ Coal is delivered by train from Virginia min♣ Clover consumes approximately 90 rail cars 

coal per day when the units are at full capac

♣ Fuel oil is used for start-up then we switch t

to heat the water to steam to drive the turbingenerator

♣ Each of our two units produces approximate

Net MW of electricity which is enough to papproximately 100,000 homes.
Keeping It Clean

One of our major concerns is the impact that we 

on the environment

Over $400 million of the $1.2 billion plant costs was 

equipment to ensure that this station maintains comp

its regulatory permits 

Two major pollution control measures used at Clove

baghouses and wet limestone scrubbers

In addition, an SNCR may be used during the ozone s

beyond 
The Baghouse
The Baghouse

♣ The baghouse acts as a filter that removes th

from the flue gas before entering the scrubbsystem

♣ This very efficient process takes 99.9% of th

ash out of the flue gas

♣ The ash is transported to a silo then to the p

where it is mixed with the scrubber byproduwater before being placed in our on-site lan
The Scrubber

♣ The scrubber removes the sulfur dioxide that is pro

as a result of burning coal

♣ This is done by mixing the hot flue gas with a slurr

limestone and water

♣ Our typical removal rate is approximately 96% alth

the permit limit is 94%

♣ Adipic acid is also used to improve removal efficie♣ Forced oxidation air is supplied to all of the vessels 

assist in forming a sulfate product instead of sulfite is easier to dewater

♣ Refer to scrubber process diagram
Selective Non-Catalytic Reduc

• Dry Urea is mad

an aqueous soluand injected into furnace for NOx Reduction.

• Results in an 

approximately 2reduction.
This is the basic overview of the sta
Wastewater Treatment Systems

♣ All oil tank secondary containments and floor drains that hav

potential for receiving oil spills drain through oil/water separa

♣ All bulk chemical tank secondary containments drain to lift st

then to the neutralization basin

♣ All sanitary wastes are routed to the on-site sanitary treatmen

♣ Cooling tower and boiler blowdown, sanitary waste treatmen

oil/water separators and neutralization basin discharge to the pond before release to the Roanoke River.

♣ Limestone storage pile, the coal pile and coal combustion byp

stackout areas drain to the coal/limestone pile runoff pond berelease to the Roanoke River

♣ The landfill wastewater treatment system consists of 4 leacha

collection basins and 7 stormwater runoff sediment ponds. Lepumped to river through a 2.34 mile forcemain and the sedimdischarge to Black Walnut Creek.

♣ 5 stormwater runoff discharges in addition to the 7 landfill po

♣ Refer to wastewater process diagram
Some interesting facts about t

Clover Power Station


The power station withdraws water from the river and p

to the raw water storage pond. From there, it is clarified bulk of which is routed to the cooling towers as make-uapproximately 9-10 MGD they evaporate


The remainder is routed to the water treatment plant for 

purification and used throughout the plant in various syincluding boiler water make-up, service/fire water


The scrubber receives its water needs from the holding 

well as the 2 emergency sludge storage ponds and accouapproximately 1 MGD of evaporative losses through the 
Some other interesting fac

about the Clover Power Stat


The Clover Power Station employs 

approximately 140 workers, is base loadand remains in operation year round


The station is located on 1800 acres of 

of which approximately 500 acres are managed wetlands


We have an on-site landfill with the cu

cell occupying approximately 30 acres.
Tour Reminders

♣Please remain with your tour guide at 

times

♣Feel free to take pictures and ask ques

but please refrain from including emplin photos. 
Attachment 

CLOVER PROCESS FLOW DIAGRAMS