Cara Membangun Jadwal Beban Esensial Sebelum Mengutip Penyimpanan Rumah

Mulai Dengan Pemadaman, Bukan Katalog Baterai

Sebelum mengutip baterai rumah untuk cadangan, bangun jadwal beban penting yang menunjukkan peralatan mana yang harus beroperasi selama pemadaman, daya nyata mereka, berapa jam mereka perlu beroperasi, apakah mereka beroperasi terus-menerus atau siklus, dan apakah ada yang memiliki daya awal tinggi. Jadwal ini menentukan dua persyaratan yang berbeda: beban puncak simultan membantu ukuran daya inverter/baterai dalam kW, sementara total energi selama pemadaman membantu ukuran kapasitas baterai yang dapat digunakan dalam kWh.

Ukuran daya cadangan telah lama menggunakan logika profil beban dasar ini: identifikasi jenis beban, permintaan stabil dan transien, kapan setiap beban beroperasi, dan berapa lama ia harus berjalan.

Untuk kutipan ESS Rumah, itu jauh lebih berguna daripada:

"Pelanggan menginginkan 15 kWh."

Tanya Pemilik Rumah Apa yang Harus Masih Bekerja pada Pukul 2 Pagi.

Saya tidak akan mulai dengan meminta setiap peralatan di rumah.

Saya akan bertanya:

Jika jaringan mati selama delapan jam, apa yang tidak ingin Anda hilangkan?

Untuk satu rumah tangga, itu mungkin:

kulkas/freezer

router internet

pencahayaan penting

sistem keamanan

pompa panas

pompa sumur

peralatan medis

Pemilik rumah lain mungkin juga bersikeras pada memasak induksi atau pintu garasi listrik.

Materi penyimpanan residensial DOE juga membingkai ketahanan di sekitar kebutuhan rumah tangga tertentu seperti pendinginan, suhu dalam ruangan yang sehat, komunikasi, dan fungsi kritis lainnya selama pemadaman.

Daftar tersebut harus mencerminkan rumah tangga, bukan template "beban penting" yang umum.

Ubah Daftar Menjadi Jadwal

Pertimbangkan pemadaman malam delapan jam yang ilustratif ini:

Ini tidakberarti rumah membutuhkan baterai dengan nama 7,46 kWh.Ini berarti jadwal beban yang dikerjakan memerlukan sekitar:

7,46 kWh pada beban

sebelum memperhitungkan batas energi yang dapat digunakan dari sistem yang sebenarnya, kerugian inverter, SoC awal, pengaturan cadangan, suhu, dan margin desain.

Sekarang kita memiliki sesuatu yang layak untuk diukur.

Kolom energi hanya menjawab setengah dari pertanyaan.

Jangan Tambahkan Setiap Daya Peralatan Bersama-sama

Kolom energi hanya menjawab setengah dari pertanyaan.

Kami juga perlu mengetahui beban mana yang tumpang tindih.

Misalkan pada pukul 19:30:

Pompa panas = 1,8 kW

Kulkas = 0,12 kW

Pencahayaan = 0,10 kW

Router/keamanan = 0,05 kW

Laptop = 0,10 kW

Beban yang berjalan secara bersamaan:

≈ 2,17 kW

Ini mulai mendefinisikan kebutuhan cadangan kontinu inverter.

Namun, pompa panas atau kompresor kulkas mungkin sementara membutuhkan lebih banyak daya saat dinyalakan.

Jadi jadwal perlu menambahkan kolom lain di lembar kerja pemasang:

Kebutuhan awal / lonjakan

Inilah sebabnya rumah dengan hanya 8 kWh permintaan energi semalaman masih dapat memerlukan inverter 5 kW atau lebih besar.

kWh mengukur anggaran energi. kW mengukur momen.

Beban Sepeda Memerlukan Perlakuan Berbeda

Sebuah kulkas yang diberi peringkat 150 W tidak selalu mengkonsumsi:

150 W × 8 jam = 1,2 kWh

karena kompresor berputar.

Demikian pula, pompa panas mungkin memodulasi daripada beroperasi terus menerus pada satu input tetap.

Untuk rumah yang sudah ada, konsumsi yang diukur lebih disukai jika tersedia.

Jika pemilik rumah memiliki data interval, colokan pintar, monitor energi, atau pemantauan inverter, gunakanlah.

Untuk instalasi baru tanpa data yang diukur, jelas identifikasi angka mana yangasumsi desainbukan konsumsi yang diukur.

Itu membuat penawaran akhirnya lebih mudah untuk dipertahankan.

Tentukan Beban Mana yang Dikecualikan

Ini seringkali lebih berharga daripada menambah kapasitas baterai.

Selama operasi cadangan, pemilik rumah mungkin setuju untuk mengecualikan:

pengisian EV

pemanasan air listrik

pemanasan kolam

sauna

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pemanas resistansi besar

atau beban energi tinggi lainnya.

Baterai 10 kWh yang berusaha mendukung seluruh rumah yang membutuhkan energi tinggi mungkin memberikan waktu operasi yang mengecewakan.

Baterai yang sama yang melayani panel beban esensial yang dipilih dengan hati-hati dapat memberikan ketahanan yang jauh lebih berguna.

DOE menggambarkan PV yang didukung baterai sebagai mampu beralih ke operasi terpisah selama kehilangan jaringan, tetapi kemampuan cadangan praktis masih tergantung pada sistem dan beban yang didukung.

Sekarang Tentukan Apakah 10 kWh Cukup

Kembali ke persyaratan yang telah kami kerjakan:

Energi beban esensial = 7,46 kWh

Misalkan sistem baterai-inverter yang dipilih dapat menyediakan8,8 kWh energi AC yang dapat digunakandi bawah asumsi desain.

Margin energi yang tersisa:

8,8 − 7,46 = 1,34 kWh

Itu mungkin dapat diterima untuk skenario delapan jam yang dinyatakan.

Tapi ubah persyaratannya menjadi:

Jalankan pompa panas sepanjang malam terlepas dari suhu luar

dan jadwal beban harus dibangun kembali.

Jangan secara diam-diam mengubah janji "beban esensial" delapan jam menjadi janji "cadangan seluruh rumah" delapan jam.

Mereka berbedaProduk.

Di Mana Peralatan Ruibit/Dawnice Masuk ke Dalam Penawaran

Hanya setelah jadwal dibangun saya akan mencocokkan perangkat keras.

Rentang residensial saat ini dari Dawnice mencakupkonfigurasi baterai 5 kWh, 10 kWh, dan yang lebih besar yang dapat diperluas, sementaraSistem ESS Rumah All-in-One Produkmenggabungkan baterai dengan fungsi inverter/pengisi daya untuk aplikasi cadangan.

Dokumentasi inverternya juga secara eksplisit menunjukkan baterai yang memasok beban rumah tangga ketika solar tidak mencukupi dan daya utilitas tidak tersedia.

Untuk kutipan Ruibit/Dawnice, saya akan memberikan kepada pemasang:

kW cadangan kontinu yang dibutuhkan

beban startup/gelombang terbesar

kWh AC yang dapat digunakan yang dibutuhkan

durasi pemadaman yang diinginkan

sirkuit beban esensial

beban yang sengaja dikecualikan

ketersediaan PV selama pemadaman

rencana beban di masa depan

Kemudian pilih baterai dan inverter bersama-sama.

Masukkan Jadwal ke Dalam Penawaran

Usulan yang baik tidak hanya mengatakan:

baterai 10 kWh + inverter 5,5 kW

Tambahkan dasar desain:

Ruang lingkup cadangan: kulkas/freezer, router, pencahayaan esensial, keamanan, peralatan pemanas terpilih, dan komunikasi. Perkiraan kebutuhan energi berdasarkan jadwal beban yang disepakati: 7,46 kWh selama pemadaman delapan jam yang dimodelkan. Waktu operasi aktual bervariasi dengan operasi peralatan, SoC baterai, suhu, ketersediaan PV, dan perilaku pengguna.

Sekarang pelanggan tahu apa yang dirancang.

Pemasang tahu apa yang dijanjikan.

Dan jika seseorang kemudian mencolokkan pengisi daya EV ke sirkuit cadangan, ada titik referensi yang jelas.

Bangun jadwal beban esensial terlebih dahulu. Biarkan kW tertinggi yang bersamaan memilih sistem daya, dan biarkan kWh yang terakumulasi memilih baterai.

FAQ

1. Apa itu jadwal beban penting untuk baterai rumah?

Jadwal beban esensial mengidentifikasiperalatan mana yang harus beroperasi selama pemadaman, daya operasional mereka, waktu operasi yang diharapkan, konsumsi energi, dan persyaratan startup atau lonjakan. Ini memberikan dasar desain untuk ukuran baterai dan inverter.

2. Bagaimana beban penting menentukan ukuran baterai rumah?

Hitung energi yang dibutuhkan oleh setiap beban esensial selama pemadaman yang diharapkan dan tambahkan hasilnya. Totalkebutuhan kWh membantu menentukan kapasitas baterai yang dapat digunakan, setelah memperhitungkan kerugian sistem, pengaturan cadangan, SoC awal, dan margin desain yang sesuai.

3. Bagaimana Anda menentukan ukuran inverter untuk cadangan beban penting?

Identifikasibeban operasional tertinggi yang bersamaandan periksa persyaratan startup atau lonjakan untuk peralatan seperti pompa panas, kulkas, dan pompa sumur. Daya inverter harus mendukung beban ini sambil tetap dalam batas pelepasan baterai.

4. Haruskah pengisi daya EV dan pemanas listrik termasuk dalam beban penting?

Hanya ketika pemilik rumah secara khusus memerlukannya dan sistem dirancang sesuai. Mengecualikan beban energi tinggi sepertipengisian EV, pemanasan air, pemanasan kolam, dan pemanas resistansidapat secara substansial memperpanjang waktu operasi cadangan.