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A Desert City Tries to Save Itself with Rain

In an average year, Brad Lancaster can harvest enough rain to meet 95% of his water needs. Roof runoff collected in tanks on his modest lot in Tucson, Arizona — where 100 degree days are common in the summer months — provides what he needs to bathe, cook and drink.

Lawn Rebates for Fall Planting Season

Fall planting season is underway and a great time to take advantage of rebates for replacing your lawn.

“Fall is like a second spring for planting in our region and it’s also a great opportunity for residents to take advantage of some outdoor incentives as they replace grass with climate appropriate plants,” said Joni German, water resources specialist at the San Diego County Water Authority.

Conservationists Challenge ‘Destructive’ Central California Dam Project

A proposed dam in California’s Central Valley is billed as a vital agricultural resource. But conservationists say it would also flood important cultural and recreational sites for surrounding communities and destroy wildlife habitat.

Menlo Park’s First Recycled Water System Officially Launches in Sharon Heights

Years in the works, Menlo Park’s first recycled water system is up and running, carrying wastewater from local households to the Sharon Heights Golf & Country Club, where a new treatment facility cleans the water for irrigation use, keeping the golf course a lush emerald green.

‘A Big Day’: Supervisors OK Draft of North County Multi-Species Conservation Plan

The Board of Supervisors Wednesday unanimously approved a draft version of a North County region conservation plan. A final draft of the plan is expected for board consideration by 2024 or 2025. Supervisors voted to receive the revised North County Multiple Species Conservation Plan, which according to the Parks and Recreation Department would provide the greatest environmental benefits.

A Bold Plan to Protect 30% of Colorado Lands and Waters by 2030

Conservationists in Colorado are dreaming big. In a time of political turmoil and legislative impotence, a consortium of Colorado conservation groups is floating an audacious plan to conserve 30% of the land in the state — roughly 20 million acres — by 2030. Since statehood, the state has protected only 6 million acres.

FEMA Ends Policy Favoring Flood Walls Over Green Protections

The Federal Emergency Management Agency has taken a dramatic step to encourage communities to use environmentally friendly features such as wetlands for flood protection instead of building sea walls and levees. A new FEMA flood policy released late last month with no public announcement is drawing praise from environmentalists because it will promote mitigation projects that provide environmental benefits in addition to flood protection.

Newsom’s Conservation Order Raises More Skepticism for Farmers and Ranchers

The order raises more questions about the administration’s agenda when it comes to pesticides and freshwater flows for threatened fish species.

Climate Point: California Becomes First State To Set Audacious Conservation Goal

Welcome to Climate Point, your weekly guide to climate, energy and environment news from around the Golden State and the country. In Palm Springs, Calif., I’m Mark Olalde. Intense weather and natural disasters continue demanding headline space in a year that’s seen enough news to last a decade. According to the National Oceanic and Atmospheric Administration, there have already been 16 weather events in 2020 that came with a bill for rebuilding that exceeded $1 billion.

The Vallecitos Water District Twin Oaks Reservoir dual solar panel array is expected to be completed in November 2020. Photo: Vallecitos Water District Solar Project

Solar Project Saves Energy, Costs for Vallecitos Water District

The Vallecitos Water District is pursuing greater use of renewable resources, increasing capacity to the electrical grid, and reducing long term operational costs with an innovative solar power project.

The west solar array is installed on top of the Vallecitos Water District’s 33-million gallon reservoir with 2,300 solar modules and eight 80 kw inverters. The east array is located on top of the 40-million gallon reservoir with 2,900 modules with ten 80 kw inverters. Photo: Vallecitos Water District

In 2017, the Vallecitos Water District Board of Directors agreed to pursue development of districtwide renewable power sources using existing open space to benefit the District and its ratepayers.  The District worked with solar consultants Terra Verde Renewable Partners to evaluate and study the feasibility of three solar port locations. Two projects are now moving forward; two arrays at the pair of Vallecitos owned reservoirs in Twin Oaks, and an array at the (sewer) Lift Station #1, located on San Marcos Boulevard.

The projects are structured under a Power Purchase Agreement. A solar provider designs, builds, and maintains systems for 25 years. In turn, the District receives a reduced electricity rate from SDG&E over the 25-year term at the District’s 13 highest use meters. The District will become owners of the solar system after the 25-year maintenance term expires. No capital investment is required from the District.

“The project is a great benefit to Vallecitos customers,” said Ryan Morgan, Capital Facilities Senior Engineer. “Through our export of power into the electrical grid, we receive bill credits on these power exchanges. The District benefits directly through reduced power costs, and that cost savings is passed down to the customer ultimately in reduced water and sewer rates.”

Multiple stakeholders working together

Vallecitos Water District provides the project sites, working with SDG&E, the solar provider team, the District’s contractors, and the solar maintenance operator. The District’s water professionals work with solar power experts to guide the project through planning, design, and construction as a team.

Over the 25-year term, the District will benefit from a reduced electrical rate of 7.79 cents per kilowatt-hour (kWh) at its 13 highest use meters. It will also receive a rebate or credit on its export of power to the electrical grid. Savings to the District over 25 years are estimated at $8.3 million, which ultimately results in reduced water and sewer rates for customers. District staff locked in the maximum federal rebate by launching the project in 2019 and meeting a narrow window for grant funding.

Solar panels installed on top of two reservoirs

The Twin Oaks Reservoir dual solar panel array sites prior to installation. Photo: Vallecitos Water District solar project

The Twin Oaks Reservoir dual solar panel array sites prior to installation. Photo: Vallecitos Water District

The west solar array is installed on top of the District’s 33-million gallon reservoir with 2,300 solar modules and eight 80 kW inverters. The east array is located on top of the 40-million gallon reservoir with 2,900 modules with ten 80 kW inverters. The total production is roughly 3.6 MWh annually, enough to power 340 homes.

Local power conservation remains vital

The Twin Oaks Reservoir dual solar array total production is roughly 3.6 mWh annually, enough to power 340 homes. Photo: Vallecitos Water District

The Twin Oaks Reservoir dual solar array total production is roughly 3.6 mWh annually, enough to power 340 homes. Photo: Vallecitos Water District

While the solar power project cannot prevent the potential for power outages due to rolling blackouts, the project helps to add capacity to the power grid when it is needed.

“The District wants to publicly thank Terre Verde Renewable Partners, Holt Renewables, and Kenyon Energy for their valuable roles in the success of this project,” said Morgan.  “We also want to acknowledge the above and beyond effort of the District’s inspections team.”

The Twin Oaks Reservoir dual array is expected to be completed in November 2020. The Lift Station #1 site is expected to be completed in February of 2021.