>>> MAJOR FUNDING FOR KPBS EVENING ADDITION HAVE BEEN MADE POSSIBLE IN PART BY BILL HOWE FAMILY OF COMPANIES, PROVIDING SAN DIEGO WITH PLUMBING, HEATING, AND AIR RESTORATION.

FLOOD AND REMODELING SERVICES FOR .

CALL 1-800-BILL-HOWE OR VISIT BILL HOWE.COM.

>>> AND BY THE CONRAD PREBYS FOUNDATION .

DARLING MARCO SHYLY , AND BY THE FOLLOWING.

AND BY VIEWERS LIKE YOU, THANK YOU.

>>> CONFLICT IN THE HOSPITALITY INDUSTRY AS THOUSANDS OF HOTEL WORKERS HIT NATIONWIDE.

HOTEL WORKERS AT THE HILTON SAN DIEGO BAYFRONT ARE STRIKING FOR A THIRD DAY TODAY.

KPBS REPORT ACADIA NASA SAYS IT COINCIDES WITH THE NATIONWIDE STRIKE TO DEMAND HIGHER WAGES.

>> Reporter: THE UNION SAYS HUNDREDS OF HOUSEKEEPERS,'S COOKS, AND OTHER HOTEL WORKERS ARE ON STRIKE.

THERE CONTRACT WITH THE HILTON SAN DIEGO BAYFRONT EXPIRED SUNDAY.

ASKING FOR A FIVE DOLLAR ANNUAL INCREASE TO WORKERS HOURLY WAGES FOR THREE YEARS.

>> MOST FOLKS HERE ARE MAKING $24 AN HOUR WHICH MIGHT SEEM LIKE A DECENT WAGE BUT IF YOU ARE PAYING 2020 $503,000 FOR RENT WHICH IS THE REALITY FOR THE MAJORITY OF OUR MEMBERS, THEY ARE NOT HOMEOWNERS, DOESN'T GO VERY FAR .

>> THE UNIT ALSO SAYS STAFFING CUTS MADE DURING THE PANDEMIC REMAINING WORKLOADS.

>> THE WORKLOAD IT FEELS LIKE IT IS DONE 10 FOLD.

THEY DON'T SEEM TO HIRE MORE PEOPLE TO HELP US OUT.

THEY WOULD RATHER RELY ON JUST OFFERING OVERTIME, OVERTIME.

>> THE HILTON SPOKESPERSON SAYS IN A STATEMENT THAT THE HILTON SAN DIEGO BAYFRONT IS, QUOTE, COMMITTED TO NEGOTIATING IN GOOD FAITH TO REACH A AN OFFICIAL TO BOTH OUR VALUED TEAM MEMBERS AND TO OUR HOTEL. "

.

THE SAN DIEGO WORKERS JOINED THOUSANDS OF HOTEL WORKERS STRIKING ACROSS THE COUNTRY OVER LABOR DAY WEEKEND .

WORKERS AND OTHER CITIES PLAN TO END THEIR STRIKES AFTER A FEW DAYS BUT THE HILTON BAYFRONT WORKERS SAY THEY WILL CONTINUE UNTIL THEY WERE REACH AN AGREEMENT.

KATIE ONASSIS, KPBS NEWS.

>>> AND EXCESSIVE HEAT WARNING FOR MOST OF SAN DIEGO COUNTY GOES INTO EFFECT TOMORROW .

FORECASTERS SAY TO EXPECT THE HIGHEST TEMPERATURES OF THE YEAR SO FAR.

KPBS REPORTER ANDREW DYER SAYS THIS TIME EVEN COASTAL AREAS WON'T BE SPARED.

>> Reporter: HEAT DOME SETTLING OVER MOST OF THE SOUTHWEST WILL BRING NEAR RECORD HIGH TEMPERATURES FROM THE SAN DIEGO POST TO THE DESERT.

DESERT COULD SEE TEMPERATURES AROUND 115 DEGREES SAN DIEGO'S INLAND VALLEYS WILL APPROACH 110 AND COASTAL AREAS WILL SEE HIGHS INTO THE 90s.

DAVE MUNYON IS A METEOROLOGIST WITH THE NATIONAL WEATHER SERVICE IN SAN DIEGO.

HE SAYS TO EXPECT THE HOTTEST TEMPERATURES OF THE YEAR .

>> THESE ARE DEFINITELY GOING TO BE SOME OF THE HOTTEST TEMPERATURES FOR PLACES LIKE RAMONA, MOST OF THE CITY OF SAN DIEGO.

AND PRETTY MUCH MOST OF THE WEST CENTRAL PORTION OF SAN DIEGO COUNTY AS A WHOLE.

>> Reporter: THE HEAT WAVE IS BEING FELT ALL OVER THE SOUTHWEST.

SOUTHERN AND CENTRAL CALIFORNIA TO LAS VEGAS AND ARIZONA ARE AFFECTED.

AND EXCESSIVE HEAT WARNING IS IN EFFECT THROUGH FRIDAY FOR MOST OF THE COUNTY.

TEMPERATURES IN THE DESERTS EAST OF THE MOUNTAINS WILL BE DANGEROUS .

>> SOME OF THE TEMPERATURES THAT WE ARE GOING TO BE SEEING HERE ARE GOING TO BE 10, 15, MAYBE EVEN 20 DEGREES ABOVE THOSE NORMALS.

EVEN PLACES THAT NORMALLY GET PRETTY HOT, WE ARE GOING TO BE 10 TO 15+ DEGREES HOTTER.

>> Reporter: A HEAT BULLETIN ISSUED BY STATE POWER MANAGERS MOURNS AT THE TEMPERATURES COULD STRAIN ENERGY PROVIDERS.

FORECASTERS EXPECT HIGHS TO RETURN TO NORMAL BEGINNING SUNDAY.

ANDREW DYER, KPBS NEWS.

>>> LOOKING AHEAD INTO TONIGHT, WE'RE DROPPING DOWN TO LOWS RIGHT AROUND THE 70s IF YOU'RE CLOSER TOWARDS THE COAST.

NOW WE DO STILL HAVE A FEW LOW CLOUDS BUT THAT MARINE LAYER GETTING SHALLOWER AND SHALLOWER.

SO THOSE LOW CLOUDS TURNING MORE PATCHY AS WE CONTINUE HERE THROUGHOUT THE WEEK .

THE BIG STORIES GOING TO BE THE HEAT .

A LOT OF PLACES HAVE ALREADY STARTED TO HEAT UP BUT WE ARE TRACKING A HEAT WAVE THIS WEEK.

WE WILL TELL YOU HOW HOT TEMPERATURES GET IN JUST A BIT.

>>> BALANCING DEMAND IN ENERGY ENERGY GENERATION IS A DELICATE TASK FOR CALIFORNIA ISO, ESPECIALLY ON HOT DAYS LIKE TODAY .

COMING UP, HOW THE STATE IS TRYING TO ADAPT AS IT MOVES TOWARD RENEWABLE ENERGY.

>>> NATIONAL CITY'S EXPECTED TO DECIDE WHETHER IT WILL IMPLEMENT A HOMELESS ENCAMPMENT BAND TODAY.

CITY COUNCIL SAID TO DISCUSS THE PROPOSAL AT A MEETING STARTING AT 6:00.

THE ORDINANCE WOULD BAN PEOPLE FROM CAMPING OUT ON CITY STREETS FROM 5:30 A.M. TO 9:00 P.M.

WHEN SHELTER BEDS ARE AVAILABLE.

IT WOULD ALSO BAN ENCAMPMENTS NEAR SCHOOLS AND WATERWAYS AND WITHIN PROXIMITY TO ANY TRANSIT HUB REGARDLESS OF BED AVAILABILITY.

OUR MEDIA PARTNER, KG TV CHECKED IN WITH THE ONLY SHELTER IN THE CITY TO SEE WHAT IMPACT THE DECISION COULD HAVE.

>> AND CAYMANS ARE UNSAFE AND WE HAVE TO ADDRESS THE PUBLIC HEALTH SAFETY AND WE DON'T HAVE ENOUGH SHELTER BEDS.

AND SO WE JUST HAVE TO FIGURE OUT HOW TO WORK TOGETHER AS A COMMUNITY.

>> Reporter: ARMSTRONG AS THAT IN OCTOBER, SOUTH COUNTY LIGHTHOUSE HAS PLANS TO ADD MORE BED.

THEY EXPECT TO RAISE THEIR CAPACITY FROM 75 TO 125 BED.

>>> TRAVELING ON HIGHWAYS OR BY TRAIN IS COMMON FOR MILLIONS OF PEOPLE, ESPECIALLY ON HOLIDAY WEEKEND.

IN THESE PLACES BECAME A TARGET OF GUNMEN IN TWO MAJOR METRO AREAS YESTERDAY IN WHAT APPEARS TO BE UNRELATED RANDOM ATTACKS AS LAURA GEARY EXPLAINS, AUTHORITIES ARE NOW LOOKING FOR A MOTIVE.

>> PUT YOUR HANDS BEHIND YOUR HEAD!

CROSS YOUR LEGS!

DO NOT MOVE!

>> Reporter: THIS IS THE MOMENT PIERCE COUNTY, WASHINGTON SHERIFF'S DEPUTIES CAPTURED A SUSPECT THEY BELIEVE SHOT MULTIPLE PEOPLE ALONG THE SEATTLE AREA INTERSTATE MONDAY.

INVESTIGATORS ARE LOOKING INTO AS MANY AS FIVE SEPARATE SHOOTINGS ALONG INTERSTATE 5 ON LABOR DAY, SPANNING TWO COUNTIES.

OFFICIALS SAY FOUR PEOPLE WERE INJURED, AT LEAST TWO OF THEM SERIOUSLY.

THE SHOOTINGS ARE THE LATEST IN A STRING OF GUN RELATED INCIDENTS ON ROADWAYS IN THAT REGION.

AND WHILE POLICE DID MAKE AN ARREST, THE INVESTIGATION INTO A MOTIVE CONTINUES.

ACROSS THE COUNTRY, ANOTHER ATTACK, THIS TIME ABOARD A PUBLIC TRANSIT TRAIN.

>> IT IS A HORRIBLE TRAGEDY THAT MORE PEOPLE ARE DEAD ON LABOR DAY WEEKEND.

>> Reporter: THE GRUESOME DISCOVERY WAS MADE WHEN A CTA TRAIN PULLED INTO THE FOREST PARK, ILLINOIS STATION.

A SUBURB OF CHICAGO.

>> THERE WERE FOUR DECEASED FROM THE SHOOTING.

>> Reporter: THE FOUR PASSENGERS KILLED ALL APPEARED TO HAVE BEEN SLEEPING.

THE SUSPECT FLED BUT WAS CAPTURED ABOUT 90 MINUTES LATER.

>> THERE IS NO IMMEDIATE THREAT .

THIS APPEARS TO BE AN ISOLATED INCIDENT .

>> Reporter: IN THIS CASE, TOO, AUTHORITIES DON'T YET HAVE A MOTIVE BUT THEY ACKNOWLEDGE THAT THE RANDOM AND SAVAGE NATURE OF THE ATTACK MAY HAVE THE PUBLIC ON EDGE .

>> PEOPLE TO FEEL UNSAFE .

YOU KNOW, IT'S JUSTIFIED.

>> Reporter: I AM LAURA GEARY FOR KPBS NEWS.

>>> NEW GOVERNMENT NUMBERS ARE GIVING US A LOOK AT HOW AMERICANS SPEND THEIR MONEY OVER THE SUMMER AND THE VIEW COULD IMPACT WHAT HAPPENED TO INTEREST RATES LATER THIS MONTH EMILY SCHMIDT REPORTS WHAT THIS COULD MEAN FOR YOU.

>> Reporter: IN SUMMER TERMS, THE FOURTH OF JULY MAY FEEL LIKE A LIFETIME AGO.

BUT IN ECONOMIC TERMS, WHAT WAS HAPPENING THEN IS JUST NOW COMING TO LIGHT.

>> CONSUMER SPENDING WAS STRONG IN JULY.

.4% FOR THE MONTH, JUST BELOW 3% YEAR-OVER-YEAR.

>> Reporter: COMMERCE DEPARTMENT FIGURES RELEASED FRIDAY SHOW STRONGER-THAN- EXPECTED SPENDING WITH THE PERSONAL CONSUMPTION EXPENDITURES PRICE INDEX OR PCE INFLATION GAUGE HOLDING STEADY.

THAT IS ALSO BENEFITING.

>> IT MEANS CONTINUED MOVEMENT IN THE RIGHT DIRECTION WITH EASING INFLATION.

>> Reporter: YOU MAY HAVE NOTICED ONE SIGN ALREADY.

>> WE ARE ACTUALLY SEEING RELIEF AT THE PUMP SO $3.35 NATIONAL AVERAGE, THAT IS A REDUCTION OF ABOUT $0.50 SINCE LAST LABOR DAY.

THE LOWEST LABOR DAY GAS PRICES WE HAVE SEEN IN THREE YEARS .

>> THE NUMBERS ARE LIKELY TO PLAY OUT ON THE CAMPAIGN TRAIL OVER THE NEXT TWO MONTHS, AS BOTH INFLATION AND BORROWING COSTS CONTINUE TO BE TOP CONCERNS FOR VOTERS.

>> I AM VERY PROUD OF THE WORK THAT WE HAVE DONE THAT HAS BROUGHT INFLATION DOWN TO LESS THAN 3%.

>> TO DO TOGETHER WE WILL DELIVER LOW TAX, LOW ENERGY COSTS, LOW INTEREST RATES, LOW INFLATION SO THAT EVERYONE CAN AFFORD GROCERIES, A CAR, AND A HOME.

>> Reporter: THE MOST CRITICAL RESULT OF THE PCE COULD BECOME CLEAR IN JUST A COUPLE OF WEEKS WHEN THE FED ANNOUNCES IF IT WILL OR WILL NOT CUT INTEREST RATES FOR THE FIRST TIME SINCE 2020.

IN WASHINGTON, I AM EMILY SCHMIDT, REPORTING.

>>> TONIGHT ON THE NEWS ARE, JUSTICE KETANJI BROWN JACKSON DISCUSSES HER TIME LEADING UP TO AND ON THE SUPREME COURT .

THAT IS COMING UP AT 7:00 AFTER EVENING EDITION ON KPBS.

>>> DEMOCRATS ARE DOUBLING DOWN ON ABORTION AS THEIR MAJOR PITCH TO WOMEN IN KEY STATES.

TODAY, THE HARRIS CAMPAIGN IS LAUNCHING A 50 STOP BUS TOUR FOCUSED ON REPRODUCTIVE HEALTHCARE.

OUR WASHINGTON CORRESPONDENT, JULIA PEMBROKE DETAILS WHY THE PLACE THEY HAVE CHOSEN TO START THE TOUR IS SO SIGNIFICANT.

>> Reporter: THE HARRIS CAMPAIGN IS LAUNCHING THE FIGHTING FOR REPRODUCTIVE FREEDOM BUS TOUR.

>> THIS TOUR IS GOING TO GO TO OVER 50 STOPS ACROSS THE COUNTRY.

>> Reporter: AND IT IS KICKING OFF JUST MILES AWAY FROM FORMER PRESIDENT DONALD TRUMP'S MAR-A- LAGO RESULT IN FLORIDA.

>> WE ARE THE POSTER CHILD FOR THE MAGA EXTREMISM THAT HAS RIPPED WOMEN'S REPRODUCTIVE HEALTHCARE POSITIONS FROM THEM A BAND SO EXTREME THAT IT IS LIKELY THAT MOST WOMEN DON'T EVEN KNOW THAT THEY ARE PREGNANT AT SIX WEEKS.

>> Reporter: IN THE FALL, VOTERS IN THE STATE WILL DECIDE IN THE FUTURE OF ABORTION ACCESS THROUGH A BALLOT MEASURE THAT WILL MAKE ABORTION ILLEGAL IN THE STATE UP TO THE.

OF VIABILITY WHICH MANY EXPERTS AGREE IS AROUND 23 OR 24 WEEKS OF PREGNANCY.

POLLING SHOWS ABORTION AS A TOP ISSUE IN THE SELECTION AND IS ONE WHERE TRUMP HAS STRUGGLED TO FIND HIS POSITION.

HIS SUGGESTION THAT HE MIGHT SUPPORT THE FLORIDA REFERENDUM THAT WOULD UNDO THE STATES CURRENT BAND ANGERED SOME RELIGIOUS CONSERVATIVES.

>> HAS TO BE MORE TIME AND SO I TOLD THEM A COUPLE MORE WEEKS .

>> YOU WILL VOTE IN FAVOR OF THE AMENDMENT?

>> I AM GOING TO BE VOTING THAT WE NEED MORE THAN SIX WEEKS.

>> Reporter: THE NEXT DAY, TRUMP CLARIFIED THAT HE PLANS TO VOTE NO.

FLORIDA IS JUST ONE OF SEVERAL STATES WHERE VOTERS WILL HAVE THE CHANCE TO WEIGH IN ON ABORTION RIGHTS IN NOVEMBER .

REPORTING IN WASHINGTON , I AM JULIA PEMBROKE.

>>> CALIFORNIA LAWMAKERS HAVE PASSED A BILL REQUIRING SCHOOLS TO COME UP WITH POLICIES TO LIMIT THE USE OF SMART PHONES ON CAMPUS.

KPBS REPORTER TONYA THORNE SAYS SOME DISTRICTS ALREADY HAVE THOSE RULES.

>> Reporter: THE HUSTLE AND BUSTLE OF STUDENTS IS BACK AT THIS HIGH SCHOOL IN CARLSBAD .

BUT THE BUZZING OF PHONES IS NOT.

KIND OF .

>> WE HAVE BEEN HERE FROM TEACHERS AND PARENTS THAT PHONES SEEM TO BE A DISTRACTION IN CLASS.

SO OUR SCHOOL BOARD WAS INTERESTED TO KNOW IF THERE WAS A WAY TO ADDRESS THIS.

>> Reporter: A SUPERINTENDENT FOR CARLSBAD UNIFIED SCHOOL DISTRICT.

HE SAYS THE SCHOOL BOARD APPROVED CELL PHONE RESTRICTIONS AHEAD OF THE NEW SCHOOL YEAR .

>> ELEMENTARY AND IT'LL SCHOOL PHONES ARE SUPPOSED TO BE SILENT AND OUT OF SIGHT ALL DAY LONG.

THEY CAN CERTAINLY BRING THEM WITH THEM BUT THEY NEED TO STAY IN A BACKPACK OR A POCKET, NOT USED EVEN DURING BREAKS LIKE RECESS AND LUNCH.

>> Reporter: FOR HIGH SCHOOLS, CELL PHONE USE IS ONLY ALLOWED DURING BREAKS OR WITH A TEACHER'S PERMISSION.

SAGE CREEK HIGH SCHOOL PRINCIPAL, JOSH WADE, EXPLAINS .

>> ASK OUR TEACHERS TO CLARIFY WHEN IT IS APPROPRIATE TO USE A CELL PHONE FOR INSTRUCTIONAL PURPOSE.

THAT MIGHT NOT BE CLEAR IN THE PAST BECAUSE, FOR EXAMPLE, IN A MEDIA JOURNALISM CLASS, MEDIA CLASSES.

CELL PHONES ARE A TREMENDOUS RESOURCE.

FILM EDITING AND COMMUNICATION AND MARKETING.

AND SO THEY STILL HAVE AN IMPORTANT USE IN THIS LEARNING ENVIRONMENT BUT CLARIFYING WHAT THOSE ARE.

>> IGNORING THE NEW RESTRICTIONS CAN LEAD TO TEACHERS CONFERENCE GETTING THE PHONE WHICH WADE SAYS HAS YET TO HAPPEN.

BUT CARLSBAD ISN'T THE ONLY SCHOOL DISTRICT IMPLEMENT THING CELL PHONE RESTRICTIONS.

EARLIER THIS YEAR, GOVERNOR GAVIN NEWSOM URGED CALIFORNIA SCHOOL DISTRICTS TO LIMIT CELL PHONE USE IN SCHOOLS.

SAYING EXCESSIVE USE IS INCREASED ANXIETY, DEPRESSION, AND OTHER MENTAL HEALTH ISSUES.

OTHER DISTRICTS ARE ALSO TAKING ACTION.

LAST WEEK, THE SAN DIEGO BOARD OF SUPERVISORS APPROVED A POLICY FOR MENTAL HEALTH EXPERTS TO HELP SCHOOL DISTRICTS CURB CELL PHONE USE IN SCHOOLS.

THE POLICY INCLUDES A 100,000 DOLLAR GRANT FOR LOCKABLE PHONE POUCHES IN LOCKERS .

>> THIS IS ALL ABOUT TACKLING HEAD-ON IN THE MENTAL HEALTH CRISIS FACING OUR YOUNG PEOPLE IN SOCIAL MEDIA AND SMART PHONES IN AN UNOBSTRUCTED WAY IS PART OF THAT.

BUT WE ARE REALLY TALKING ABOUT HOW WE CAN BE PARTNERS TO OUR PRINCIPLES, OUR PARENTS, AND OUR SCHOOLS TO COME UP WITH HOLISTIC POLICIES .

>> SAN DIEGO, CORONADO, PALAIS, AND SANYO .

TONYA THORNE, KPBS NEWS.

>>> A PANDEMIC ERA STAPLE HAS COME TO AN END IN CHULA VISTA TODAY.

THE CITY GAVE BUSINESS OWNERS UNTIL 5:00 P.M. TODAY TO TAKE DOWN OUTDOOR DINING PARK LET'S THE CITY SAYS REMOVING THE PARK LET'S WILL FREE UP PARKING SPACE WHICH WILL HELP LOCAL BUSINESSES .

BUT BUSINESSES AND CUSTOMERS HAVE MIXED EMOTIONS ABOUT THE ORDER.

>> I WAS TRULY HOPING FOR A LAST-MINUTE HAIL MARY ARE THINGS WOULD ALL BE ON THE SAME PAGE WHERE WE CAN MAINTAIN THESE PARK LET'S BUT IT LOOKS LIKE IT IS ALL OVER .

>> THE CITY SAYS THE PARK LET'S WERE ALWAYS INTENDED TO BE TEMPORARY BUT IT PLANS TO CONSIDER A PERMANENT OUTDOOR DINING POLICY SOON.

>>> THE MODERN ELECTRIC GRID HAS BECOME A CAREFUL DANCE BETWEEN DEMAND AND GENERATION.

AND IN CALIFORNIA, GENERATION IS MOVING TOWARD RENEWABLE ENERGY.

KPBS CYTEC REPORTER TELLS US HOW THE CALIFORNIA GRID IS A BALANCING SUPPLY AND HOW AN ELECTRICAL TEST BED AT UCSD WANTS TO CHANGE THE WAY WE CONSUME ENERGY.

>> Reporter: IT LOOKS LIKE ONE SIDE OF A DUCK AND GRID OPERATORS COLLECT THE DUCK CURVE .

IF YOU TRACE THE NET DAILY DEMAND FOR ENERGY IN CALIFORNIA, THAT DEMAND BY ENERGY SUPPLY, IT STARTS AT MIDNIGHT WITH THE TAIL .

THE BELLY OF THE DUCK COMES AT MIDDAY, WHEN SOLAR ENERGY PRODUCTION IS AT ITS PEAK.

BUT THEN DEMAND ZOOMS UP TO FORM THE HEAD OF THE DUCK IN THE EARLY EVENING WENT DEMAND FOR ENERGY IS HIGH AND THE SUN IS SETTING.

>> SO IN THE BELLY OF THE DAY YOU KNOW, THAT EARLY AFTERNOON, EVEN LATE MORNING.

NOON TO, YOU KNOW, NOON TO 3 P.M. IS KIND OF THAT DEEPEST PART OF THE BELLY, MEANING WHERE OUR NET LOAD IS AT ITS LOWEST BECAUSE OF OUR OUTPUT FROM OUR RENEWABLE RESOURCES.

>> Reporter: BRIAN MURRAY IS DIRECTOR OF REAL-TIME OPERATIONS FOR CAL I SO, THE STATE ELECTRICAL GRID.

AND HE SAYS THAT DUCK CURVE REPRESENTS THE CHALLENGE OF MEETING DEMAND IN A WORLD OF RENEWABLE ENERGY, WHICH IS VARIABLE AND CAN'T BE PRODUCED BY JUST THROWING A SWITCH.

WHEN HE TALKS ABOUT RENEWABLES, HE MOSTLY MEANS SOLAR POWER, WHICH PROVIDES MOST OF CALIFORNIA'S ELECTRICITY DURING DAYTIME IN THE SUMMER.

HE SAYS CALIFORNIA'S STATE- CONTROLLED RENEWABLE ENERGY HAS A TOTAL OF 31,000 MEGAWATTS OF CAPACITY.

SOLAR ENERGY MAKES UP ABOUT TWO THIRDS OF THAT, WIND POWER IS THE SECOND LARGEST CONTRIBUTOR.

AND AS TECHNOLOGY AND CONSTRUCTION MOVE AHEAD, THAT WILL SURELY CHANGE.

>> OFFSHORE WIND IS GOING TO BECOME IN THE PLANNING HORIZON FOR US.

>> Reporter: AND THEN THERE ARE THE BATTERY FARMS.

MURRAY CALLS THE RECENT GROWTH IN THAT ENERGY SOURCE EXPONENTIAL.

>> BATTERIES HAS BEEN A MAJOR PLAYER FOR US IN TERMS OF THEIR FLEXIBILITY, RIGHT?

IT'S NOT LIKE A STEAM PLANT THAT NEEDS 10 HOURS TO TURN ON.

YOU KNOW, BATTERIES ARE ESSENTIALLY ALWAYS ON.

THEY CAN BE DISCHARGING AND PROVIDING ENERGY TO THE GRID OR THEY CAN BE CONSUMING ENERGY WHILE THEY ARE CHARGING.

THEY ARE BENEFICIAL IN MULTIPLE AREAS OF THE DUCK CURVE.

>> Reporter: FLEXIBILITY IS THE KEY TO RUNNING A MODERN ENERGY SUPPLY OPERATION THAT'S MOVING TO RENEWABLES.

WHEN ONE SOURCE IS NOT PRODUCING YOU HAVE TO SWITCH TO ANOTHER PICK WHEN YOU HAVE MORE ENERGY PRODUCTION THEN YOU CAN USE, YOU EXPORT IT TO ANOTHER STATE OR USE IT TO CHARGE THE BATTERY FARMS.

FLEXIBILITY AND DEMAND, CALLED ENERGY LOAD, IS ALSO IMPORTANT.

IN A LOW-SLUNG BUILDING JUST BELOW THE TROLLEY TRACKS AT UC SAN DIEGO, ENGINEERING RESEARCHERS SHOW US TWO ROOMS FILLED WITH COMPUTERS, BREAKERS, AND NODES.

THE NODES ARE SMALL BOXES THAT COMMUNICATE WITH ELECTRICAL DEVICES ON CAMPUS.

THE NEW BUILDING IS THE HUB OF AN ENERGY TESTBED THAT WILL STUDY A BIG CHUNK OF THE CAMPUS TO LEARN HOW DEVICES CAN BE TURNED OFF AND ON TO MAKE THE MOST OF ENERGY SUPPLY.

PROFESSOR IS PRINCIPAL INVESTIGATOR FOR WHAT THEY CALL DR CONNECT.

>> WATER HEATERS, ELECTRIC VEHICLES, ENERGY SYSTEMS .

YOU HAVE SOMETHING ON THE PRINTER.

THAT IS NOT BEING USED.

SO WE ARE LOOKING AT THOUSANDS OF THESE DEVICES THROUGHOUT THE CAMPUS AND WE ARE READY TO REDUCE LOAD AND THEN COMMUNICATE WITH THEM AND MAKE THEM RUN FASTER.

>> Reporter: TESTBED PROJECT MANAGER SAYS THE ENERGY DEMAND SIDE IS CONSTANTLY IN FLUX.

>> SO HOW DO WE MANAGE THE CORONATION?

HOW DO WE MAKE THESE DISTRIBUTOR DEVICES SMART ENOUGH TO ACTUALLY TALK BACK AND COMMUNICATE ESSENTIAL INFORMATION BACK TO EACH OTHER SO THAT WE CAN MAINTAIN THAT BALANCE BETWEEN GENERATION AND LOAD ACROSS THE WHOLE GRID?

>> Reporter: ONE EXAMPLE OF A SMART DEVICE IS A BUILDING SENSOR THAT CAN TELL THE GRID THERE'S NOBODY ON THE FLOOR OF AN OFFICE BUILDING.

THE BUILDING CAN BE PROGRAMMED TO TURN OFF THE LIGHTS AND SUSPEND CIRCULATION TO THAT FLOOR.

THE UCSD TESTBED, LIKE THE CALIFORNIA GRID, ALSO HAS BATTERIES THAT CAN STORE ENERGY AND, IF YOU WANT, GENERATE ENERGY TO SIMULATE, LET'S SAY, A WIND POWER STATION.

>> BECAUSE THAT VARIABILITY WE NEED TO LOOK FOR FLEX ABILITY AND VARIATION ON THE LOAD SIDE, AS WELL .

THAT WAY WE CAN WORK TOGETHER, CUSTOMER AND GENERATOR -PROVIDER TO MAINTAIN THAT BALANCE.

>> Reporter: THE PRIMARY GOAL AT UCSD IS TO CREATE A SET OF ALGORITHMS TO PROGRAM ELECTRICAL DEVICES TO SUPPLY POWER WERE DEMAND ACTUALLY EXISTS.

THE POLITICAL FORCES DRIVING CHANGES TO CALIFORNIA'S SELECTABLE GRID ARE STATE LAWS THAT DEMAND GREATER USE OF RENEWABLE ENERGY.

MURRAY, WITH CAL I SO SAYS THE STATE POWER SUPPLY HAS TO BE 60% RENEWABLE BY 2030 AND 100% BY 2045.

CAN WE MEET THOSE GOALS?

MURRAY SAYS WE CAN.

>> WE HAVE GOT STATISTICS THAT SHOW, WE GOT A NUMBER OF DAYS WHERE WE HAVE ALREADY PRODUCED 100% OF OUR LOAD BY RENEWABLES.

SO TO SAY CAN WE ACHIEVE 60% BY 2030?

ABSOLUTELY.

WE ARE PRETTY MUCH, WE ARE PRETTY CLOSE TO THAT ALREADY.

>> Reporter: NUCLEAR ENERGY IS ALSO CLEAN ENERGY SINCE IT DOESN'T COMMIT GREENHOUSE GASES, BUT MURRAY SAYS NUCLEAR'S PRODUCTION IS VERY INFLEXIBLE SO YOU CANNOT EASILY REDUCE IT OR SHUT IT OFF.

SO WITH THE GROWTH WE ARE SEEING IN OTHER CLEAN ENERGIES, HE DOESN'T NUCLEAR WILL BE NEEDED IN CALIFORNIA'S FUTURE.

THOMAS FUDGE, KPBS NEWS .

>>> YOUR WEATHER HEADLINES THE BIG STORY IS GOING TO BE THE HEAT.

AND THAT IS WHAT WE ARE TRACKING THIS WEEK AS A HEAT WAVE.

WITH THAT HEAT PICKING THURSDAY AND FRIDAY ACROSS A LOT OF THE REGION, EVEN ACROSS MOST OF SOCAL, AS WELL .

DRY AND SUNNY , THOUGH, FOR THE MOST PART.

SO ON TOP OF THE HEAT WERE GOING TO HAVE THAT BLAZING SUNSHINE.

YOU ARE CERTAINLY GOING TO WANT TO TAKE CARE OF YOURSELF IN THE EXTREME HEAT.

TONIGHT WE ARE DROPPING DOWN TO LOWS AROUND 70, CLOSER TO SAN DIEGO .64, OCEANSIDE .

A LITTLE BIT DIFFERENT AS WE HEAD INLAND .

RAMONA, YOU ARE DROPPING DOWN TO 60 THREE.

78.

NOW HIGH PRESSURE IS LARGE AND IN CHARGE AND IT'S THE MAIN CONTROLLING FACTOR HERE OVER OUR WEATHER PATTERN.

WEDNESDAY THROUGH THE WEEK END.

WITH SOME OF THOSE DAILY RECORD HIGHS CHALLENGE.

OF COURSE, WITH THE EXTREME HEAT WE ARE CONCERNED ABOUT HEAT RELATED ILLNESSES SO MAKE SURE YOU ARE STAYING HYDRATED WITH WATER AND TAKING PLENTY OF COOLING BREAKS.

ON TOP OF THIS, WE HAVE LITTLE TO NO RAINFALL.

YOU'RE NOT GOING TO CATCH TOO MUCH RELIEF AT NIGHT OR INLAND AREAS AS MOST JUST DROPPING DOWN TO THE 80s AND EVEN 90s IN A FEW AREAS.

WE DO HAVE THIS EXCESSIVE HEAT WARNING NOW IN EFFECT HERE WEDNESDAY MORNING THROUGH FRIDAY EVENING .

SO IF YOU ARE ANYWHERE THAT IS SHADED OR INLAND ALLEYS, CLOSER TO TOWARDS THE MOUNTAINS AND THE DESERT, IT IS GOING TO BE QUITE TOASTY AS WE HEAD INTO TOMORROW WE WILL SEE WHY BRITTO SPRINGS, YOU'RE AT 111 .

SUNNY SKIES THROUGHOUT THE DAY.

MOUNT LAGUNA , NOT BAD.

OF COURSE, YOU AT 76 .

CLOSER TO THE COAST WE WILL BE HANGING ONTO THOSE 80s ANYWHERE FROM OCEANSIDE DOWN TO SAN DIEGO.

ALONG THE COAST , HIGHS GRADUALLY CONTINUING TO WARM HERE THURSDAY TO FRIDAY AND IT IS GOING TO BE QUITE HOT.

WE ARE TRACKING AN INCREASE IN MONSOONAL MOISTURE HERE AS WE HEAD INTO THE WEEKEND.

WE WILL BE FEELING A LITTLE HUMID.

WE AREN'T NECESSARILY TRACKING WIDESPREAD RAIN.

SLIGHT CHANCES FOR OUR MOUNTAINS AND DESERTS BUT FOR THE INLAND AREAS, HIGHS ARE GOING TO BE TOPPING OFF IN THE TRIPLE DIGITS THURSDAY AND FRIDAY BEFORE THEY DO START TO COME DOWN BUT IT IS STILL PRETTY HOT THERE THROUGHOUT THE WEEKEND.

FOR THE MOUNTAINS, HIGHS IN THE 70s .

WE DO TAKE A QUICK DIP SATURDAY DOWN TO 69 BUT WE ARE BACK UP TO 75 THERE BY SUNDAY.

A LITTLE BIT OF A ROLLER COASTER STAR ON THE WEEKEND.

SO IN THE DESERTS, HIGHS IN THE TRIPLE DIGIT TEENS.

VERY HOT, DANGEROUSLY HOT FOR THOSE TEMPERATURES START TO COME DOWN A LITTLE BIT OVER THE WEEKEND.

FOR KPBS NEWS, I METEOROLOGIST .

>>> CALIFORNIA LAWMAKERS PASSED A MEASURE BANNING COMMON CHEMICALS IN FOOD SERVED AT PUBLIC SCHOOLS.

IT WOULD BAN SIX DIFFERENT FOOD DYES FREQUENTLY FOUND IN CEREALS, ICE CREAMS, CANDY, AND OTHER SNACK FOODS CONSUMER REPORTS AND THE NONPROFIT ENVIRONMENTAL WORKING GROUP COSPONSORED THE BILL.

2021 STUDY SUGGESTED THE DYES CAN REDUCE CHILDREN'S ATTENTION SPANS AND INCREASE BEHAVIORAL PROBLEMS.

GOVERNOR NEWSOM HAS UNTIL THE END OF THE MONTH TO SIGN THE BILL INTO LAW.

>>> DESPITE SOME RECENT IMPROVEMENTS, MENTAL HEALTH CHALLENGES CONTINUE TO WEIGH HEAVILY ON TEENAGERS SINCE THE COVID-19 PANDEMIC.

JULIA VARGAS JONES HAS THE STORY OF HOW THE SECOND LARGEST U.S. SCHOOL DISTRICT IS STEPPING UP TO ADDRESS THIS ONGOING CRISIS.

>>> HI, WELCOME, IF YOU COULD PLEASE TAKE OFF YOUR SHOES.

>> Reporter: NO SHOES, NO PHONES, AND NO DESKS.

INSTEAD, THIS CLASSROOM HAS TIBETAN SINGING BOWLS, SALT LAMPS, AND FLOOR.

>> I'M ONE OF THE PSYCHIATRIC SOCIAL WORKERS AT THE SCHOOL.

>> Reporter: HERE, HIGH SCHOOLERS LEARN TO IDENTIFY ANXIETY AND DEPRESSION AND SKILLS TO COPE WITH IT.

ACCORDING TO THE CDC'S LATEST YOUTH RISK BEHAVIOR SURVEY, 40% OF HIGHS WILL STUDENTS SURVEY REPORT FEELING CONSISTENTLY SAD OR HOPELESS IN 2023.

THAT IS DOWN SLIGHTLY FROM 42% IN 2021 BUT STILL ABOUT 10 PERCENTAGE POINTS HIGHER THAN IT WAS IN 2013.

14 GIRLS, THE ISSUE IS EVEN MORE PRONOUNCED.

53% SAY THEY FELT PERSISTENTLY SAD OR HOPELESS COMPARED TO 28% OF VOICE >> WE MADE DECISIONS, TOUGH DECISIONS THAT PRIORITIZE THE SAFETY AND WELL-BEING OF KIDS.

>> Reporter: THE LOS ANGELES UNIFIED SCHOOL DISTRICT HAS BROUGHT IN MORE THAN 800 MENTAL HEALTH PROFESSIONALS TO WORK WITH ITS ROUGHLY 430,000 STUDENTS.

>> WE NEVER LEARNED HOW TO JUST TAKE A MOMENT TO, YOU KNOW, THINK ABOUT THINGS.

MEDITATE.

THINGS THAT COULD HELP US TO JUST TAKE A PAUSE.

>> Reporter: A SCHOOL STUDENT SAY IS ALREADY HELPING THEM COPE WITH THE PRESSURE OF ACADEMIC PERFORMANCE.

>> I THINK THIS IS A PERFECT PLACE TO KIND OF DO IT.

>> Reporter: JULIA VARGAS JONES, LOS ANGELES.

>>> YOU CAN FIND MORE FROM THE KPBS NEWSROOM ON YOUTUBE THAT IS WHERE WE POST NEW CONTENT DAILY AND LIVE STREAM KPBS EVENING EDITION WEEKNIGHTS AT 5:00.

AND HERE'S A LOOK AT WHAT WE ARE WORKING ON FOR TOMORROW IN THE KPBS NEWSROOM.

NPR'S MORNING EDITION SPEAKS WITH THE DIRECTOR OF THE SYRACUSE DIVERSITY INSTITUTE FOR DEMOCRACY, JOURNALISM AND CITIZENSHIP ABOUT HOW UNDECIDED VOTERS ARE FEELING AT THIS POINT AND THE PRESIDENTIAL ELECTION.

WE LOOK INTO PROJECT 2025 AND HOW IT COULD IMPACT POLICIES FROM IMMIGRATION TO REPRODUCTIVE RIGHTS.

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THANKS FOR JOINING US.

I AM MAYA TRABULSI, HAVE A GREAT EVENING.

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